CN112257149A - Building construction pre-assembly method based on BIM technology - Google Patents

Building construction pre-assembly method based on BIM technology Download PDF

Info

Publication number
CN112257149A
CN112257149A CN202011106464.2A CN202011106464A CN112257149A CN 112257149 A CN112257149 A CN 112257149A CN 202011106464 A CN202011106464 A CN 202011106464A CN 112257149 A CN112257149 A CN 112257149A
Authority
CN
China
Prior art keywords
physical model
construction
model
building
dimensional virtual
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011106464.2A
Other languages
Chinese (zh)
Inventor
周经纬
赵棣
杨周
邱顺
邱爱梅
徐周
徐然
周宁
马丹亚
周敬阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cosco Rongtong Engineering Consulting Co ltd
Original Assignee
Cosco Rongtong Engineering Consulting Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cosco Rongtong Engineering Consulting Co ltd filed Critical Cosco Rongtong Engineering Consulting Co ltd
Priority to CN202011106464.2A priority Critical patent/CN112257149A/en
Publication of CN112257149A publication Critical patent/CN112257149A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00Computer-aided design [CAD]
    • G06F30/10Geometric CAD
    • G06F30/13Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00Administration; Management
    • G06Q10/06Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G06Q10/063Operations research, analysis or management
    • G06Q10/0631Resource planning, allocation, distributing or scheduling for enterprises or organisations
    • G06Q10/06311Scheduling, planning or task assignment for a person or group
    • G06Q10/063114Status monitoring or status determination for a person or group
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06QINFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/08Construction

Landscapes

  • Engineering & Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Human Resources & Organizations (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Geometry (AREA)
  • Economics (AREA)
  • Architecture (AREA)
  • Strategic Management (AREA)
  • Entrepreneurship & Innovation (AREA)
  • General Business, Economics & Management (AREA)
  • Tourism & Hospitality (AREA)
  • Computer Hardware Design (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Marketing (AREA)
  • Mechanical Engineering (AREA)
  • Primary Health Care (AREA)
  • Quality & Reliability (AREA)
  • General Health & Medical Sciences (AREA)
  • Game Theory and Decision Science (AREA)
  • Educational Administration (AREA)
  • Development Economics (AREA)
  • Operations Research (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Evolutionary Computation (AREA)
  • General Engineering & Computer Science (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

The invention discloses a building construction pre-assembly method based on a BIM technology, which comprises the following steps: s1, building a building construction database; s2, constructing a three-dimensional virtual model; s3, building a physical model; s4, monitoring the site of the constructed physical model; s5, checking the three-dimensional virtual model and the physical model; s6, modifying the physical model; s7, storing the modified scheme, the three-dimensional virtual model and the monitoring video data during building of the physical model, and during the use of the invention, when building construction is pre-assembled, remotely monitoring the site of the building physical model through the camera device, and simultaneously storing the monitoring data into the building construction database for analysis, thereby effectively remotely monitoring whether the construction safety system is followed by the working personnel during construction, thereby avoiding safety accidents during building construction pre-assembly and protecting the construction safety of the working personnel.

Description

Building construction pre-assembly method based on BIM technology
Technical Field
The invention relates to the technical field of building construction pre-assembly, in particular to a building construction pre-assembly method based on a BIM (building information modeling) technology.
Background
The construction is a production movement performed by people to construct various building products in a certain space and time according to a specific design blueprint by using various building materials and mechanical equipment. The method comprises the whole production process from construction preparation, earth breaking and engineering completion acceptance. In the process, construction preparation, construction organization design and management, earthwork engineering, blasting engineering, foundation engineering, reinforcing steel bar engineering, template engineering, scaffold engineering, concrete engineering, prestressed concrete engineering, masonry engineering, steel structure engineering, wood structure engineering, structure installation engineering and the like are carried out. The BIM technology is a datamation tool applied to engineering design, construction and management, and shares and transmits the building datamation and informatization model integration in the whole life cycle process of project planning, operation and maintenance, so that engineering technicians can correctly understand and efficiently respond to various building information, a foundation for cooperative work is provided for design teams and all building main bodies including buildings and operation units, and the building information management system plays an important role in improving production efficiency, saving cost and shortening construction period. The core of BIM is to provide a complete building engineering information base consistent with the actual situation for a virtual building engineering three-dimensional model by establishing the model and utilizing the digital technology. The information base not only contains geometrical information, professional attributes and state information describing building components, but also contains state information of non-component objects (such as space and motion behaviors). By means of the three-dimensional model containing the construction engineering information, the information integration degree of the construction engineering is greatly improved, and therefore a platform for engineering information exchange and sharing is provided for related interest parties of the construction engineering project.
China discloses the invention: CN109488028A discloses a building construction pre-assembly method based on BIM technology, it utilizes BIM technology to replace manual assembly of building construction members, carries out simulation pre-assembly through software, not only analyzes the error between the drawing of the building construction member and the product, meanwhile, the positions of the connecting nodes for the real object assembly of the building construction member can be corrected, the smooth later assembly of the real object of the building construction member is ensured, other patent documents CN111395466A and CN111259484A are disclosed in the related technology, however, in the pre-assembly process of the building construction, the construction process of assembling the physical model by the working personnel can not be remotely monitored, so that whether the working personnel obey the construction safety system during construction can not be effectively remotely monitored, construction safety accidents are easily caused, the construction safety of workers is threatened, and therefore, a building construction pre-assembly method based on the BIM technology is provided.
Disclosure of Invention
The invention aims to provide a building construction pre-assembly method based on a BIM technology, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a building construction pre-assembly method based on a BIM technology comprises the following steps:
s1, building a building construction database, wherein the building construction database is used for storing the three-dimensional virtual model, the physical model and a modification scheme of the physical model;
s2, constructing a three-dimensional virtual model;
s3, building a physical model;
s4, monitoring a construction site for constructing the physical model, wherein in the step, a camera device is used for monitoring a construction site for constructing the physical model, the monitored data is transmitted to the building construction database, and then the monitored data is analyzed through a monitoring program, whether the operation process of the construction operation of the site working personnel is correct and whether protective articles which must be worn by the working personnel during the construction are correctly worn or not are analyzed, whether a professional safety worker exists in the construction site or not is analyzed, and safety problems existing in the site construction are pointed out in time;
s5, verifying the three-dimensional virtual model and the physical model, wherein in the step, a verification program is used for verifying the three-dimensional virtual model and the physical model, and after the three-dimensional virtual model and the physical model are verified, a verification result is stored in the building construction database;
s6, modifying the physical model, wherein the construction of the physical model is modified according to the verification result of the three-dimensional virtual model and the physical model, and the three-dimensional virtual model and the physical model are verified by repeatedly utilizing a verification program after modification until the error between the physical model and the three-dimensional virtual model is within the error range;
s7, storing the modification scheme, the three-dimensional virtual model and the monitoring video data when the physical model is constructed
As further preferable in the present technical solution: in S2, the three-dimensional virtual model is constructed using a BIM program.
As further preferable in the present technical solution: in S3, the physical model is constructed by machining with a machining device, and the physical model is constructed with a robot and a welding device.
As further preferable in the present technical solution: in S7, the modification of the physical model, the three-dimensional virtual model, and the monitoring video data during the physical model construction are stored in the building construction database.
Compared with the prior art, the invention has the beneficial effects that: 1. in the using process of the invention, when building construction is pre-assembled, the building physical model site is remotely monitored by the camera equipment, and simultaneously the monitoring data is stored in the building construction database for analysis, so as to effectively remotely monitor whether the construction safety system is followed or not when workers are in construction, thereby avoiding safety accidents caused when building construction is pre-assembled and protecting the construction safety of the workers; 2. the invention carries out dynamic real-time adjustment by combining the installation of the product with pre-splicing and the execution of on-site physical models and on-site safety construction.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1, the present invention provides a technical solution: a building construction pre-assembly method based on a BIM technology comprises the following steps:
s1, building a building construction database;
s2, constructing a three-dimensional virtual model;
s3, building a physical model;
s4, monitoring the site of the constructed physical model;
s5, checking the three-dimensional virtual model and the physical model;
s6, modifying the physical model;
and S7, storing the modification scheme, the three-dimensional virtual model and the monitoring video data during the building of the physical model.
In this embodiment, specifically: at S1, the building construction database is used to store the three-dimensional virtual model, the physical model and the modification to the physical model; through the setting of building the construction database, the modification scheme and the three-dimensional virtual model of the physical model and the monitoring video data during building the physical model are stored in the construction database, so that the modification scheme and the three-dimensional virtual model of the physical model and the monitoring video data during building the physical model are conveniently analyzed, the efficiency and the quality of the subsequent building of the three-dimensional virtual model and the physical model are improved, meanwhile, the monitoring video data are analyzed, the construction site for building the physical model is conveniently supervised, and the construction safety of site workers is improved.
In this embodiment, specifically: in S2, the three-dimensional virtual model is constructed using the BIM program; the BIM program is used for setting the construction of the three-dimensional virtual model, the BIM is composed of various families, and in one constructed virtual model, the conventional constructed family can be controlled by setting the existing parameters, so that the uniqueness and the applicability of the virtual model are realized.
In this embodiment, specifically: in S3, a physical model is constructed by machining with machining equipment, and a physical model is constructed with a robot arm and welding equipment; when the physical model is processed, the workpiece is clamped through the mechanical arm, and meanwhile, the workpiece is welded through the welding equipment, so that the splicing processing progress of the physical model is improved, and the predicted splicing efficiency is improved.
In this embodiment, specifically: in S4, a construction site for building a physical model is monitored by using a camera device, monitored data are transmitted to a building construction database, and then the monitored data are analyzed by a monitoring program to analyze whether the operation process of the construction work of site workers is correct and whether protective articles which must be worn by the workers during construction are correctly worn, and whether professional safety personnel exist in the construction site or not, so that safety problems in site construction are pointed out in time; the monitoring data of the camera equipment is analyzed and set through the monitoring program, workers constructing a physical model construction site are supervised, and safety problems of the construction site are pointed out in time, so that the construction safety of the site workers is ensured.
In this embodiment, specifically: in S5, the three-dimensional virtual model and the physical model are verified by a verification program, and after the three-dimensional virtual model and the physical model are verified, the verification result is stored in a building construction database; the three-dimensional virtual model and the physical model are verified through a verification program, and the deviation between the three-dimensional virtual model and the physical model is recorded, so that the physical model can be modified and adjusted conveniently in the follow-up process.
In this embodiment, specifically: in S6, according to the result of checking the three-dimensional virtual model and the physical model, the construction of the physical model is modified, and after the modification, the checking program is repeatedly used for checking the three-dimensional virtual model and the physical model until the error between the physical model and the three-dimensional virtual model is within the error range; the difference between the physical model and the three-dimensional virtual model is reduced by setting and modifying the physical model, so that the accuracy of the physical model is higher.
In this embodiment, specifically: in S7, storing the modification scheme of the physical model construction, the three-dimensional virtual model and the monitoring video data during the physical model construction into a building construction database; the modification scheme of the building of the physical model, the three-dimensional virtual model and the setting of storing the monitoring video data in the building construction database during building of the physical model are used for recording and analyzing the pre-assembly process, so that the efficiency and the quality of subsequent pre-assembly are improved.
When the working principle or the structural principle is used, a building construction database for storing a three-dimensional virtual model, an object model and a modification scheme of the object model is firstly established, then the BIM program is utilized to construct the three-dimensional virtual model, the uniqueness and the applicability of the virtual model are realized through the setting of the construction of the three-dimensional virtual model, then the processing equipment is utilized to construct the object model, in the construction process, a camera device is utilized to monitor the construction site for constructing the object model, the monitored data are transmitted to the building construction database, then the monitored data are analyzed through the monitoring program, the safety problem of the construction site is pointed out in time, so that the construction safety of site workers is ensured, then the constructed object model is verified and compared with the three-dimensional virtual model through a verification program, and the deviation between the three-dimensional virtual model and the object model is recorded, modifying the construction of the physical model according to the result of the verification of the three-dimensional virtual model and the physical model, repeatedly utilizing a verification program to verify the three-dimensional virtual model and the physical model after modification until the error between the physical model and the three-dimensional virtual model is within the error range, storing the modification scheme of the physical model into a building construction database, simultaneously storing the three-dimensional virtual model and the monitoring video data during the construction of the physical model into the building construction database, analyzing the modification scheme of the construction of the physical model, the three-dimensional virtual model and the monitoring video data during the construction of the physical model, thereby improving the efficiency and the quality of the construction of the subsequent three-dimensional virtual model and the physical model, simultaneously analyzing the monitoring video data, facilitating the supervision of the construction site for constructing the physical model, and further improving the construction safety of site workers, the modification scheme of the building of the physical model, the three-dimensional virtual model and the setting of storing the monitoring video data in the building construction database during building of the physical model are used for recording and analyzing the pre-assembly process, so that the efficiency and the quality of subsequent pre-assembly are improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A building construction pre-assembly method based on a BIM technology is characterized by comprising the following steps:
s1, building a building construction database, wherein the building construction database is used for storing the three-dimensional virtual model, the physical model and a modification scheme of the physical model;
s2, constructing a three-dimensional virtual model;
s3, building a physical model;
s4, monitoring a construction site for constructing the physical model, wherein in the step, a camera device is used for monitoring a construction site for constructing the physical model, the monitored data is transmitted to the building construction database, and then the monitored data is analyzed through a monitoring program, whether the operation process of the construction operation of the site working personnel is correct and whether protective articles which must be worn by the working personnel during the construction are correctly worn or not are analyzed, whether a professional safety worker exists in the construction site or not is analyzed, and safety problems existing in the site construction are pointed out in time;
s5, verifying the three-dimensional virtual model and the physical model, wherein in the step, a verification program is used for verifying the three-dimensional virtual model and the physical model, and after the three-dimensional virtual model and the physical model are verified, a verification result is stored in the building construction database;
s6, modifying the physical model, wherein the construction of the physical model is modified according to the verification result of the three-dimensional virtual model and the physical model, and the three-dimensional virtual model and the physical model are verified by repeatedly utilizing a verification program after modification until the error between the physical model and the three-dimensional virtual model is within the error range;
and S7, storing the modification scheme, the three-dimensional virtual model and the monitoring video data during the building of the physical model.
2. The building construction pre-assembly method based on the BIM technology as claimed in claim 1, wherein: in S1, the construction database is used to store the three-dimensional virtual model, the physical model, and the modification to the physical model.
3. The building construction pre-assembly method based on the BIM technology as claimed in claim 1, wherein: in S2, the three-dimensional virtual model is constructed using a BIM program.
4. The building construction pre-assembly method based on the BIM technology as claimed in claim 1, wherein: in S3, the physical model is constructed by machining with a machining device, and the physical model is constructed with a robot and a welding device.
5. The building construction pre-assembly method based on the BIM technology as claimed in claim 1, wherein: in S7, the modification of the physical model, the three-dimensional virtual model, and the monitoring video data during the physical model construction are stored in the building construction database.
CN202011106464.2A 2020-10-16 2020-10-16 Building construction pre-assembly method based on BIM technology Pending CN112257149A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011106464.2A CN112257149A (en) 2020-10-16 2020-10-16 Building construction pre-assembly method based on BIM technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011106464.2A CN112257149A (en) 2020-10-16 2020-10-16 Building construction pre-assembly method based on BIM technology

Publications (1)

Publication Number Publication Date
CN112257149A true CN112257149A (en) 2021-01-22

Family

ID=74243678

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011106464.2A Pending CN112257149A (en) 2020-10-16 2020-10-16 Building construction pre-assembly method based on BIM technology

Country Status (1)

Country Link
CN (1) CN112257149A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113112601A (en) * 2021-04-06 2021-07-13 河南中安建设工程有限公司 Building construction pre-assembly method based on BIM technology
CN113191633A (en) * 2021-04-29 2021-07-30 谢亚奇 Building construction safety protection early warning system based on BIM
CN114722467A (en) * 2022-03-31 2022-07-08 中国电建集团河北省电力勘测设计研究院有限公司 Power transmission line foundation pit groove inspection method based on three-dimensional digital design

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106730560A (en) * 2017-01-06 2017-05-31 西安思源学院 Structural fire protection real-time monitoring system based on BIM
CN108446889A (en) * 2018-02-11 2018-08-24 北京市轨道交通建设管理有限公司 A kind of exchange method of construction site and construction speed platform
CN109488028A (en) * 2018-10-15 2019-03-19 筑梦高科建筑有限公司 A kind of construction pre-assembly method based on BIM technology
CN110414170A (en) * 2019-08-05 2019-11-05 重庆建工第三建设有限责任公司 A kind of construction pre-assembly method and system based on BIM technology
CN111432197A (en) * 2020-03-19 2020-07-17 上海建工四建集团有限公司 Construction monitoring method and system
CN111563680A (en) * 2020-05-06 2020-08-21 北方工业大学 BIM-based assembly type building construction safety protection method and device and electronic equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106730560A (en) * 2017-01-06 2017-05-31 西安思源学院 Structural fire protection real-time monitoring system based on BIM
CN108446889A (en) * 2018-02-11 2018-08-24 北京市轨道交通建设管理有限公司 A kind of exchange method of construction site and construction speed platform
CN109488028A (en) * 2018-10-15 2019-03-19 筑梦高科建筑有限公司 A kind of construction pre-assembly method based on BIM technology
CN110414170A (en) * 2019-08-05 2019-11-05 重庆建工第三建设有限责任公司 A kind of construction pre-assembly method and system based on BIM technology
CN111432197A (en) * 2020-03-19 2020-07-17 上海建工四建集团有限公司 Construction monitoring method and system
CN111563680A (en) * 2020-05-06 2020-08-21 北方工业大学 BIM-based assembly type building construction safety protection method and device and electronic equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113112601A (en) * 2021-04-06 2021-07-13 河南中安建设工程有限公司 Building construction pre-assembly method based on BIM technology
CN113191633A (en) * 2021-04-29 2021-07-30 谢亚奇 Building construction safety protection early warning system based on BIM
CN114722467A (en) * 2022-03-31 2022-07-08 中国电建集团河北省电力勘测设计研究院有限公司 Power transmission line foundation pit groove inspection method based on three-dimensional digital design

Similar Documents

Publication Publication Date Title
CN112257149A (en) Building construction pre-assembly method based on BIM technology
CN109801038B (en) General engineering construction method based on BIM technology application
CN110216789B (en) Intelligent control system of bridge segment prefabrication field
CN113408927B (en) Big data-based prestressed construction quality evaluation method and system
CN112734370A (en) BIM-based project supervision information management method and system
CN112906248A (en) BIM technology-based large steel structure building construction safety management method
Rausch et al. Benchmarking and improving dimensional quality on modular construction projects–A case study
CN106441689A (en) Real-time automatic monitor system for wireless torque wrench
CN107060726A (en) The system that a kind of use travel engineering robot carries out tunnel boring
CN113269527A (en) Method for accurately processing steel bar based on BIM steel bar shape and parameters
CN112464494A (en) Construction system is built to wisdom
Brosque et al. Comparison of construction robots and traditional methods for drilling, drywall, and layout tasks
CN110795789A (en) Application method in scaffold engineering based on BIM (building information modeling) cooperation technology
CN116561871A (en) Deep construction method for mounting embedded part of bridge bearing platform
CN113075914A (en) Intelligent building integrated management system based on BIM and Internet of things technology
Nowotarski et al. Lean and agile management synergy in construction of high-rise office building
Angulo et al. Using BIM for the assessment of the seismic performance of educational buildings
Xu et al. Implementation of a robotic system for overhead drilling operations: a case study of the Jaibot in the UAE
Yamazaki et al. 3D/BIM applications to large-scale complex building projects in Japan
Salling et al. Breakdown Work Sampling
Waheeb et al. Uses and Applications of Robots in Construction Work
CN106537391A (en) System and method for engineering and detailing steel joints in a steel structure
CN116976700A (en) Construction progress and cost prediction method, device, equipment and storage medium
CN113112601A (en) Building construction pre-assembly method based on BIM technology
CN106441690A (en) Real-time automatic monitoring method for wireless torsional force wrench

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination