CN207714619U - Prefabricated panel and walling system - Google Patents
Prefabricated panel and walling system Download PDFInfo
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- CN207714619U CN207714619U CN201721924567.3U CN201721924567U CN207714619U CN 207714619 U CN207714619 U CN 207714619U CN 201721924567 U CN201721924567 U CN 201721924567U CN 207714619 U CN207714619 U CN 207714619U
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- prefabricated panel
- bolt
- bolt mounting
- wallboard body
- mounting portion
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Abstract
The utility model is related to technical field of buildings, more particularly to a kind of prefabricated panel and walling system.The prefabricated panel includes：Wallboard body；Bolt mounting portion and grout groove are both provided in the two side walls of wallboard body；The side of two neighboring wallboard body is fixedly connected by bolt mounting portion fitted bolt；For slurry to be perfused in grout groove.Prefabricated panel provided by the utility model, two neighboring prefabricated panel is bolted by the bolt mounting portion on prefabricated panel side wall, then it is in the milk in grout groove and bolt mounting portion, namely, it is fixed by way of bolt grouting connection between two prefabricated panel side walls, compared with being connected by wet type between two prefabricated panel side walls in the related technology, the side wall of prefabricated panel does not have to carry out out muscle design, convenient for the production, storage and transport of component, production and transport cost is reduced, the complexity of Joining Technology is reduced.
Description
Technical field
The utility model is related to technical field of buildings, more particularly to a kind of prefabricated panel and walling system.
Background technology
In recent years, China's assembled architecture is quickly grown, and related specifications and atlas are issued in succession, and structure interconnection technique is increasingly
It is ripe.But existing fabricated construction system is mostly muscle design, and node Joining Technology is complicated, and field cast-in-place amount is big, hinders building
Industrialization development.Therefore convenient and quick construction, it is integrated it is high, at low cost, field cast-in-place amount is few, safety and goes out the few assembled of muscle
Architectural structural system needs further to be studied.
In high-rise assembled architecture field, the side of prefabricated panel in the related technology carries out out muscle design, horizontal phase
Between two adjacent wallboards, i.e., it is fixed by wet connection mode between the side wall of two neighboring wallboard, field cast-in-place amount is big,
Joining Technology is complicated.
Utility model content
The purpose of this utility model is to provide a kind of prefabricated panel and walling systems, to solve prior art deadlight side
Face goes out the technical problem that muscle, Joining Technology are complicated, field cast-in-place amount is big.
The utility model provides a kind of prefabricated panel, which includes：Wallboard body；Two of the wallboard body
Bolt mounting portion and grout groove are both provided on side wall；The side of the two neighboring wallboard body passes through the bolt mounting portion
Fitted bolt is fixedly connected；For slurry to be perfused in the grout groove.
Further, the bolt mounting portion on each side wall of the wallboard body is multiple；Multiple bolt mounting portions
Interval setting successively from top to bottom.
Further, multiple bolt mounting parts are that multiple first bolt mounting portions and multiple second bolts are installed
Portion；
Multiple first bolt mounting portions and multiple second bolt mounting portions are staggered；Along the wallboard body
Thickness direction, the first bolt mounting portion is positioned close to one end of the wallboard body inner surface, second bolt
Mounting portion is positioned close to one end of the wallboard body outer surface.
Further, the bolt mounting portion is pre-buried screw element.
Further, the bolt mounting portion includes mounting hole and bolt box；The mounting hole is arranged in the wall
The end of plate ontology；The bolt box is arranged in the mounting hole on the side wall of the wallboard body end end.
Further, it is provided with fixing muscle at the top of the wallboard body, bottom is provided with mounting hole；The mounting hole packet
Include jack and grout hole；The jack is arranged on the bottom wall of the wallboard body, and the grout hole is arranged in the wallboard sheet
On the inner surface of body or outer surface；The lower end of the grout hole is connected to the jack；The jack is described solid for plugging
Determine muscle.
Further, the grout hole is arc-shaped.
Further, pre-buried bellows or embedded sleeve barrel are provided in the mounting hole.
Further, the fixing muscle and the mounting hole are multiple rows of, multiple rows of fixing muscle and multiple rows of fixation
Kong Jun along the wallboard body thickness direction interval be arranged, and multiple rows of mounting hole with it is right above and below multiple rows of fixing muscle
It answers.
Further, the utility model also provides a kind of walling system, which includes that basis and this practicality are new
The prefabricated panel that type provides.
The utility model provides a kind of prefabricated panel, which includes wallboard body, is set on the side wall of wallboard body
It is equipped with bolt mounting portion and grout groove, when the connection of the side wall of two neighboring prefabricated panel, user is by two prefabricated panel sides
Bolt mounting portion on wall is bolted to connection, and slurry is perfused into grout groove and bolt mounting portion, prefabricated by two
Wallboard is fixedly connected.
Prefabricated panel provided by the utility model, two neighboring prefabricated panel are installed by the bolt on prefabricated panel side wall
Portion is bolted, that is, being fixed by bolted connection between two prefabricated panel side walls, with the relevant technologies
In compared by wet type connection between two prefabricated panel side walls, the side wall of prefabricated panel does not have to carry out out muscle design, is convenient for structure
Production, storage and the transport of part reduce production and transport cost, reduce the complexity of Joining Technology.
Description of the drawings
The attached drawing for constituting the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The illustrative embodiments and their description of type are not constituted improper limits to the present invention for explaining the utility model.
In attached drawing：
Fig. 1 is the structural schematic diagram according to the prefabricated panel of the utility model embodiment；
Fig. 2 is another structural schematic diagram according to the prefabricated panel of the utility model embodiment.
In figure：
1- wallboard bodies；2- bolt mounting portions；3- fixing muscles；
4- mounting holes；5- the first bolt mounting portions；6- the second bolt mounting portions；
7- grout grooves；21- mounting holes；22- prepared screw-bolt holes；
41- jacks；42- grout holes.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition
The concrete meaning of language in the present invention.
Fig. 1 is the structural schematic diagram according to the prefabricated panel of the utility model embodiment；Fig. 2 is according to the utility model reality
Apply another structural schematic diagram of the prefabricated panel of example；As depicted in figs. 1 and 2, the utility model embodiment provides a kind of dry wall
Plate, the prefabricated panel include：Wallboard body 1；Bolt mounting portion 2 and grout groove are both provided in the two side walls of wallboard body 1
7；The side of two neighboring wallboard body 1 is fixedly connected by 2 fitted bolt of bolt mounting portion；For slurry to be perfused in grout groove 7
Material.
The utility model embodiment provides a kind of prefabricated panel, which includes wallboard body 1, wallboard body 1
Bolt mounting portion 2 and grout groove 7 are provided on side wall, when the connection of the side wall of two neighboring prefabricated panel, user is by two
Bolt mounting portion 2 on prefabricated panel side wall is bolted to connection, and slurry is perfused into grout groove 7 and bolt mounting portion 2
Material, two prefabricated panels are fixedly connected.
The prefabricated panel that the utility model embodiment provides, two neighboring prefabricated panel pass through the spiral shell on prefabricated panel side wall
Bolt mounting portion 2 is bolted, that is, be fixed by bolted connection between two prefabricated panel side walls, with
It is compared in the related technology by wet type connection between two prefabricated panel side walls, the side wall of prefabricated panel is set without carrying out out muscle
Meter is convenient for production, storage and the transport of component, reduces production and transport cost, reduces the complexity of Joining Technology.
Wherein, the structure type of bolt mounting portion 2 can be a variety of, for example, mounting hole 21 may be used in bolt mounting portion 2
Form, or the form of threaded hole.
As depicted in figs. 1 and 2, on the basis of the above embodiments, further, the spiral shell on 1 each side wall of wallboard body
Bolt mounting portion 2 is multiple；The interval setting successively from top to bottom of multiple bolt mounting portions 2.
In the present embodiment, the bolt mounting portion 2 on 1 each side wall of wallboard body is disposed as to multiple, multiple bolt peaces
The interval setting successively from top to bottom of dress portion 2.Coordinated by multiple bolt mounting portions 2 between the side wall of two neighboring wallboard body 1
Multiple bolts are fixed.
In the present embodiment, the setting of multiple bolt mounting portions 2 makes two neighboring prefabricated panel from top to bottom fix successively,
The connecting node for enhancing two neighboring prefabricated panel improves the bonding strength of two neighboring prefabricated panel so that adjacent two
A prefabricated panel connection is more stablized.
As depicted in figs. 1 and 2, on the basis of the above embodiments, further, it is multiple that multiple bolt mounting portions 2, which divide,
First bolt mounting portion 5 and multiple second bolt mounting portions 6；Multiple first bolt mounting portions 5 and multiple second bolt mounting portions 6
It is staggered；Along the thickness direction of wallboard body 1, the first bolt mounting portion 5 is positioned close to the one of 1 inner surface of wallboard body
End, the second bolt mounting portion 6 are positioned close to one end of 1 outer surface of wallboard body.
In the present embodiment, along the thickness direction of wallboard body 1, multiple first bolt mounting portions 5 and multiple second bolts peace
Dress portion 6 is separately positioned on the both ends of wallboard body 1, that is, inner surface of the first bolt mounting portion 5 close to wallboard body 1, second
Bolt mounting portion 6 is close to the outer surface of wallboard body 1.
On the basis of the above embodiments, further, bolt mounting portion 2 is pre-buried screw element.
In the present embodiment, bolt mounting portion 2 is set as pre-buried screw element, and bolt is screwed in two neighboring prefabricated by user
In pre-buried screw element on wallboard side wall, to which two neighboring prefabricated panel is fixedly connected by bolt.
In the present embodiment, it sets bolt mounting portion 2 to pre-buried screw element, it is simple in structure, convenient for users to installation bolt.
Wherein, pre-buried screw element can be pre-embedded bolt set or pre-buried screw shell.
As shown in Figure 1, on the basis of the above embodiments, further, bolt mounting portion 2 includes mounting hole 21 and reserves
Bolt hole 22；Mounting hole 21 is arranged in the end of wallboard body 1；Prepared screw-bolt hole 22 is arranged in mounting hole 21 close to wallboard body
On the side wall of the 1 end end.
In the present embodiment, bolt mounting portion 2 is set as mounting hole 21 and prepared screw-bolt hole 22, and user exists hand placement
In mounting hole 21, the prepared screw-bolt hole 22 on two neighboring prefabricated panel side wall is passed through to be fixedly connected on bolt, and to peace
It fills and slurry is perfused in hole 21 and prepared screw-bolt hole 22.
In the present embodiment, bolt mounting portion 2 is set as the form of mounting hole 21 and prepared screw-bolt hole 22, and user can be by hand
Portion is placed in mounting hole 21, convenient for users to operation.
As depicted in figs. 1 and 2, on the basis of the above embodiments, further, the top of wallboard body 1 is provided with solid
Determine muscle 3, bottom is provided with mounting hole 4；Mounting hole 4 includes jack 41 and grout hole 42；Jack 41 is arranged at the bottom of wallboard body
On wall, grout hole 42 is arranged on the inner surface of wallboard body or outer surface；The lower end of grout hole 42 is connected to jack 41；It inserts
Hole 41 is for plugging fixing muscle 3.
In the present embodiment, the top of wallboard body 1 is provided with fixing muscle 3, and bottom is provided with mounting hole 4, when upper layer is prefabricated
When wallboard is connect with lower layer prefabricated panel, the fixing muscle 3 at the top of lower layer's prefabricated panel is plugged in inserting for upper layer prefabricated panel bottom
In hole 41, and slurry is perfused into jack 41 by grout hole 42 and is fixed, facilitates fixation.
As shown in Fig. 2, on the basis of the above embodiments, further, grout hole 42 is arc-shaped.
In the present embodiment, grout hole 42 is set as arc, during slurry perfusion, slurry can be made along grout hole 42
It is smooth to enter in jack 41, it avoids slurry from being blocked in some position of grout hole 42, improves the smooth degree of pulp flow.
On the basis of the above embodiments, further, pre-buried bellows or embedded sleeve barrel are provided in mounting hole 4.
In the present embodiment, the pre-buried bellows of setting or embedded sleeve barrel, fixing muscle 3 are plugged in pre-buried wave in mounting hole 4
Either slurry is perfused into pre-buried bellows or embedded sleeve barrel in embedded sleeve barrel in line pipe, facilitates the perfusion of slurry.
As shown in Fig. 2, on the basis of the above embodiments, further, fixing muscle 3 and mounting hole 4 be it is multiple rows of, it is multiple rows of
Fixing muscle 3 and multiple rows of mounting hole 4 are arranged along the thickness direction interval of wallboard body 1, and multiple rows of mounting hole 4 and multiple rows of fixation
About 3 muscle is corresponding.
In the present embodiment, fixing muscle 3 and mounting hole 4 are set as multiple rows of, thickness of the multiple rows of fixing muscle 3 along wallboard body 1
Direction interval is arranged, and multiple fixing muscles 3 correspond grafting with multiple mounting holes 4.
On the basis of the above embodiments, further, the utility model embodiment provides a kind of walling system, the wall
System includes basis and the prefabricated panel such as the utility model embodiment offer.
Further, walling system further includes prefabricated sleeper and prefabricated panel component, the prefabricated sleeper and dry wall board group
Part includes：Prefabricated sleeper and multiple prefabricated panels；Sleeper bolt mounting portion and dark is both provided on each end of prefabricated sleeper
Column grout groove；The side of prefabricated panel is provided with side bolt mounting portion and side grout groove；Prefabricated sleeper is arranged multiple pre-
The junction of wallboard processed；Multiple sleeper bolt mounting portions are correspondingly arranged with the side bolt mounting portion on multiple prefabricated panels, and
It is bolted to connection；The connection corresponding with multiple side grout grooves of multiple sleeper grout grooves, sleeper grout groove are in the milk with side
Slurry is perfused in slot.
A kind of prefabricated sleeper of the utility model embodiment offer and prefabricated panel component, the prefabricated sleeper and dry wall board group
Part includes prefabricated sleeper and multiple prefabricated panels, and the end set of prefabricated sleeper has sleeper bolt mounting portion, the side of prefabricated panel
Portion is provided with side bolt mounting portion.By the bolt mounting portion on each end in prefabricated end and the side on multiple prefabricated panels
Bolt mounting portion, which corresponds to, to be placed, and will be fixed sleeper bolt mounting portion and side bolt mounting portion by bolt.Sleeper is in the milk
It is perfused with slurry in slot and side grout groove.
The prefabricated sleeper that the utility model embodiment provides and prefabricated panel component, the side of prefabricated sleeper and prefabricated panel
It is achieved a fixed connection by bolt, namely is fixed prefabricated sleeper with prefabricated panel by way of dry type connection, sleeper does not have to
Muscle design is carried out out, Joining Technology is simple, simple in structure, is conveniently operated.It is perfused with slurry in sleeper grout groove and side grout groove
Material can further enhance the bonding strength of prefabricated panel and prefabricated sleeper, improve the stabilization that prefabricated panel is connect with prefabricated sleeper
Property.The prefabricated sleeper that the utility model embodiment provides is suitable for high-rise walling system with prefabricated panel component.
Further, after sleeper bolt mounting portion and side bolt mounting portion are bolted, pacify to sleeper bolt
Slurry is perfused in dress portion and side bolt mounting portion.
On the basis of the above embodiments, further, sleeper bolt mounting portion is threaded built-in fitting.
In the present embodiment, sleeper bolt mounting portion is threaded built-in fitting, and user is by the side of bolt and prefabricated panel
Bolt mounting portion connects, while bolt being screwed in threaded built-in fitting, to by bolt by prefabricated sleeper and dry wall
Plate is fixedly connected.
In the present embodiment, it sets sleeper bolt mounting portion to threaded built-in fitting, it is simple in structure, convenient for users to installation
Bolt.
On the basis of the above embodiments, further, prefabricated sleeper is L-shaped；Prefabricated panel is two；L-shaped two
End is both provided with sleeper bolt mounting portion and sleeper grout groove；Two prefabricated panels are vertically arranged；On L-shaped two ends
Sleeper bolt mounting portion and the side bolt mounting portion of two prefabricated panels are bolted to connection.
In the present embodiment, prefabricated sleeper is L-shaped, and L-shaped two ends are respectively provided with sleeper bolt mounting portion and sleeper grouting
Slot.Between prefabricated sleeper is placed on two prefabricated panels, the sleeper bolt mounting part on two ends of L-shaped is not pre- with two
Side bolt mounting portion on wallboard processed is bolted, to realize the fixation of prefabricated sleeper and two prefabricated panels.This implementation
Example is suitable for situation when two prefabricated panel vertical connections.
On the basis of the above embodiments, further, prefabricated sleeper is T shapes, and prefabricated panel is three；Three of T shapes
End is both provided with sleeper bolt mounting portion and sleeper grout groove；Three T-shaped settings of prefabricated panel；On three ends of T shapes
Sleeper bolt mounting portion and the side bolt mounting portion of three prefabricated panels be bolted to connection.
In the present embodiment, prefabricated sleeper is T-shaped, and three ends of T shapes are respectively provided with sleeper bolt mounting portion and sleeper grouting
Slot.Between prefabricated sleeper is placed on three prefabricated panels, bolt mounting part on three ends of T shapes not with three dry walls
Side bolt mounting portion on plate side is bolted, to realize the fixation of prefabricated sleeper and three prefabricated panels.Embodiment
Situation when being connected suitable for three prefabricated panels.
On the basis of the above embodiments, further, the side on sleeper bolt mounting portion and each prefabricated panel side
Portion's bolt mounting portion is multiple；Multiple sleeper bolt mounting portions are installed with multiple side bolts on each prefabricated panel side
Portion's interval setting successively from top to bottom, and multiple sleeper bolt mounting portions are corresponded with multiple side bolt mounting portions.
In the present embodiment, by multiple sleeper bolt mounting portions and multiple side bolt mounting portions by up to lower setting, make
User connects one to one multiple sleeper bolt mounting portions and multiple side bolt mounting portions of each wallboard side, to real
The connection of existing prefabricated sleeper and prefabricated panel.
In the present embodiment, multiple sleeper bolt mounting portions are from top to bottom fixed successively with multiple side bolt mounting portions, are increased
The strong connecting node of prefabricated sleeper and prefabricated panel, improves the bonding strength of prefabricated sleeper and prefabricated panel so that prefabricated
Sleeper is connect with prefabricated panel more to be stablized.
On the basis of the above embodiments, further, the side of sleeper grout groove and each prefabricated panel upper lateral part fills
Stock tank is multiple；Multiple side grout grooves on multiple sleeper grout grooves and each prefabricated panel side are from top to bottom successively
Interval setting, and multiple sleeper grout grooves are corresponded with multiple side grout grooves.
In the present embodiment, sleeper grout groove and side grout groove are disposed as it is multiple, and by up to lower setting, to
Slurry is perfused in sleeper grout groove and side grout groove, to further increase the bonding strength of prefabricated panel and prefabricated sleeper.
Preferably, side grout groove and sleeper grout groove are set as square structure.
On the basis of the above embodiments, further, multiple sleeper grout grooves interlock with multiple sleeper bolt mounting portions
Setting.
In the present embodiment, multiple sleeper grout grooves are staggered with multiple sleeper bolt mounting portions so that sleeper grout groove
Position and the position of sleeper bolt mounting portion be staggered, increase the connecting node of prefabricated sleeper and prefabricated panel so that prefabricated
Bonding strength between sleeper and prefabricated panel improves.Correspondingly, multiple side grout grooves and multiple side bolt mounting portions
It is staggered.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (10)
1. a kind of prefabricated panel, which is characterized in that including：Wallboard body；
Bolt mounting portion and grout groove are both provided in the two side walls of the wallboard body；The two neighboring wallboard body
Side is fixedly connected by the bolt mounting portion fitted bolt；For slurry to be perfused in the grout groove.
2. prefabricated panel according to claim 1, which is characterized in that the bolt installation on each side wall of wallboard body
Portion is multiple；The interval setting successively from top to bottom of multiple bolt mounting portions.
3. prefabricated panel according to claim 2, which is characterized in that multiple bolt mounting parts are multiple first spiral shells
Bolt mounting portion and multiple second bolt mounting portions；
Multiple first bolt mounting portions and multiple second bolt mounting portions are staggered；Along the thickness of the wallboard body
Direction is spent, the first bolt mounting portion is positioned close to one end of the wallboard body inner surface, the second bolt installation
Portion is positioned close to one end of the wallboard body outer surface.
4. prefabricated panel according to claim 1, which is characterized in that the bolt mounting portion is pre-buried screw element.
5. prefabricated panel according to claim 1, which is characterized in that the bolt mounting portion includes mounting hole and reserved spiral shell
Keyhole；The mounting hole is arranged in the end of the wallboard body；The prepared screw-bolt hole is arranged in the mounting hole close to institute
On the side wall for stating the wallboard body end end.
6. prefabricated panel according to claim 1, which is characterized in that it is provided with fixing muscle at the top of the wallboard body,
Bottom is provided with mounting hole；The mounting hole includes jack and grout hole；The bottom wall in the wallboard body is arranged in the jack
On, the grout hole is arranged on the inner surface of the wallboard body or outer surface；It is inserted with described the lower end of the grout hole
Hole is connected to；The jack is for plugging the fixing muscle.
7. prefabricated panel according to claim 6, which is characterized in that the grout hole is arc-shaped.
8. prefabricated panel according to claim 6, which is characterized in that be provided in the mounting hole pre-buried bellows or
Embedded sleeve barrel.
9. prefabricated panel according to claim 6, which is characterized in that the fixing muscle and the mounting hole be it is multiple rows of,
Multiple rows of fixing muscle and multiple rows of mounting hole are arranged along the thickness direction interval of the wallboard body, and multiple rows of described
Mounting hole is corresponding up and down with multiple rows of fixing muscle.
10. a kind of walling system, which is characterized in that including basis and such as claim 1-9 any one of them dry walls
Plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721924567.3U CN207714619U (en) | 2017-12-29 | 2017-12-29 | Prefabricated panel and walling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721924567.3U CN207714619U (en) | 2017-12-29 | 2017-12-29 | Prefabricated panel and walling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207714619U true CN207714619U (en) | 2018-08-10 |
Family
ID=63054133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721924567.3U Active CN207714619U (en) | 2017-12-29 | 2017-12-29 | Prefabricated panel and walling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207714619U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252603A (en) * | 2018-10-17 | 2019-01-22 | 阜阳市卓创科技服务生产力促进中心 | A kind of stalk is the precast concrete sandwich wall of thermal insulation material |
| CN113863486A (en) * | 2021-10-24 | 2021-12-31 | 湖南同进装饰材料有限公司 | Prefabricated wallboard structure |
-
2017
- 2017-12-29 CN CN201721924567.3U patent/CN207714619U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109252603A (en) * | 2018-10-17 | 2019-01-22 | 阜阳市卓创科技服务生产力促进中心 | A kind of stalk is the precast concrete sandwich wall of thermal insulation material |
| CN113863486A (en) * | 2021-10-24 | 2021-12-31 | 湖南同进装饰材料有限公司 | Prefabricated wallboard structure |
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Address after: 102200 1st floor, building 6, No.8 Beiqing Road, Huilongguan town, Changping District, Beijing Patentee after: Sany Construction Technology Co.,Ltd. Address before: 102206, Beijing Changping District Huilongguan North Road 31 Industrial Park Patentee before: SANY CONSTRUCTION TECHNOLOGY Co.,Ltd. |