CN115095104B - Construction method of ultra-large-area parking garage terrace - Google Patents
Construction method of ultra-large-area parking garage terrace Download PDFInfo
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- CN115095104B CN115095104B CN202210974873.7A CN202210974873A CN115095104B CN 115095104 B CN115095104 B CN 115095104B CN 202210974873 A CN202210974873 A CN 202210974873A CN 115095104 B CN115095104 B CN 115095104B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/12—Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo gypsum floors
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/18—Separately-laid insulating layers; Other additional insulating measures; Floating floors
- E04F15/20—Separately-laid insulating layers; Other additional insulating measures; Floating floors for sound insulation
- E04F15/203—Separately-laid layers for sound insulation
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/22—Resiliently-mounted floors, e.g. sprung floors
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F2290/00—Specially adapted covering, lining or flooring elements not otherwise provided for
- E04F2290/04—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire
- E04F2290/041—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise
- E04F2290/042—Specially adapted covering, lining or flooring elements not otherwise provided for for insulation or surface protection, e.g. against noise, impact or fire against noise with a facing or top layer for sound insulation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Floor Finish (AREA)
Abstract
The application discloses a construction method of an ultra-large-area parking garage terrace, which adopts asparagus polyurea paint to prepare an anti-skid silent terrace for the ultra-large-area parking garage. Different areas of the parking garage are provided with different structures and methods, the parking space area is provided with a high-elastic mute anti-skid asparagus polyurea surface layer, the traffic lane area is provided with a high-elastic mute anti-skid asparagus polyurea surface layer, the automobile ramp area is provided with a particle anti-skid asparagus polyurea mortar surface layer, the requirements of different areas on different degrees such as wear resistance, skid resistance, silence and the like are met, the parking garage terrace is prevented from cracking and falling, and the scratch resistance, wear resistance, weather resistance and service life of the parking garage terrace are improved. On the other hand, the laser leveling machine is adopted to construct the leveling layer, and the construction is efficient. The application solves the problems of easy breakage and falling off, poor scratch resistance, poor wear resistance and weather resistance and short service life of the terrace of the traditional parking garage.
Description
Technical Field
The application relates to the technical field of building construction, in particular to a construction method of a super-large-area parking garage terrace.
Background
The comprehensive transportation hub engineering (GTC engineering for short) is used for building hot tide. GTC engineering generally involves high standard oversized parking garages. The traditional parking garage terrace is easy to break and fall off, has poor scratch resistance, poor wear resistance and weather resistance, short service life and the like.
Chinese patent CN107474712B discloses a high-strength asparagus polyurea waterproof coating and a preparation method thereof, the published patent is mostly a asparagus polyurea material preparation method, the construction method is rare, and a high-standard ultra-large-area parking garage asparagus polyurea anti-slip silent terrace construction method is not found.
The information disclosed in this background section is only for enhancement of understanding of the general background of the application and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
In order to overcome the defects existing in the prior art, the construction method of the ultra-large-area parking garage terrace is provided, so that the problems that the traditional parking garage terrace is easy to break and fall off, poor in scratch resistance, poor in wear resistance and weather resistance and short in service life are solved.
In order to achieve the above purpose, the construction method of the super large area parking garage terrace comprises the following steps:
cleaning a basal plane of a parking garage foundation;
paving a concrete leveling layer on the base surface through a laser leveling machine;
dividing the parking garage into a parking area, a horizontal traffic lane area and a ramp area;
constructing a first surface layer structure on a concrete leveling layer of the parking area, wherein when the first surface layer structure is constructed, a solvent-free asparagus polyurea composite primer layer with the thickness of 0.8mm, a solvent-free asparagus polyurea elastic middle paint layer with the thickness of 1mm and a solvent-free super wear-resistant top paint layer with the thickness of 0.2mm are paved on the concrete leveling layer from bottom to top;
constructing a second surface layer structure on a concrete leveling layer in the horizontal traffic lane area, wherein when the second surface layer structure is constructed, a solvent-free asparagus polyurea composite primer layer with the thickness of 2mm, a solvent-free asparagus polyurea elastic middle paint layer with the thickness of 1.8mm and a solvent-free super wear-resistant finish paint layer with the thickness of 0.2mm are paved on the concrete leveling layer from bottom to top;
and constructing a third surface layer structure on the concrete leveling layer in the ramp area, wherein when the third surface layer structure is constructed, a solvent-free asparagus polyurea primer layer with the thickness of 0.3mm, a solvent-free asparagus polyurea mixed sand composite middle paint layer with the thickness of 5.4mm and a solvent-free super wear-resistant finish paint layer with the thickness of 0.3mm are paved on the concrete leveling layer from bottom to top.
Further, the solvent-free aspen polyurea composite primer layer of the first facing structure comprises:
a solvent-free asparagus polyurea lower paint layer with the thickness of 0.3mm is paved on the concrete leveling layer;
a solvent-free asparagus polyurea mortar paint layer with the thickness of 0.4mm, which is paved on the solvent-free asparagus polyurea lower paint layer and is mixed with first fine sand;
and a solvent-free asparagus polyurea paint layer with the thickness of 0.1mm is paved on the solvent-free asparagus polyurea mortar paint layer.
Further, the first fine sand is 70-120 mesh sand.
Further, the solvent-free aspen polyurea composite primer layer of the second facing structure comprises:
a solvent-free asparagus polyurea lower paint layer with the thickness of 0.3mm is paved on the concrete leveling layer;
a solvent-free asparagus polyurea mortar paint layer with the thickness of 1.4mm, which is laid on the solvent-free asparagus polyurea lower paint layer and mixed with second fine sand;
and a solvent-free asparagus polyurea paint layer with the thickness of 0.3mm is paved on the solvent-free asparagus polyurea mortar paint layer.
Further, the second fine sand is fine sand with 70-120 meshes.
Further, the solvent-free asparagus polyurea mixed sand composite intermediate paint layer comprises:
2.8mm thick solvent-free asparagus polyurea mortar paint which is paved on the solvent-free asparagus polyurea primer layer and mixed with quartz sand; and
2.6mm thick solvent-free asparagus polyurea mortar paint, laid in the solvent-free asparagus polyurea mortar paint and mixed with diamond sand.
Further, the quartz sand is 40-70 meshes.
Further, the Jin Gangyu sand is 20-40 mesh corundum sand.
The construction method has the beneficial effects that the construction method of the ultra-large-area parking garage terrace is a construction method for preparing the anti-slip mute terrace by adopting the asparagus polyurea paint for the ultra-large-area parking garage. In addition, adopt different structures and way to the different regions of garage parking for parking stall region adopts 2mm thick high-elastic silence anti-skidding asparagus polyurea surface course, and the lane region adopts 4mm thick high-elastic silence anti-skidding asparagus polyurea surface course, and car ramp region adopts 6mm thick granule anti-skidding asparagus polyurea mortar surface course, satisfies the demand of different regions to different degree such as wear-resisting, antiskid, silence, avoids the garage parking terrace to break, drop, improves its scratch resistance, wearability, weatherability, life. On the other hand, the leveling layer is constructed by adopting advanced technologies such as a laser leveling machine, the construction is efficient, the quality is improved, a plurality of working procedures such as stirring, leveling, vibrating and tamping are integrated together, the leveling layer is finished at one time by a machine, the laser leveling machine automatically finds a slope, the construction is efficient, and the construction quality is greatly improved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the accompanying drawings in which:
fig. 1 is a schematic structural diagram of a first facing structure according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a second facing structure according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a third surface layer structure according to an embodiment of the application.
Detailed Description
The application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be noted that, for convenience of description, only the portions related to the application are shown in the drawings.
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
Referring to fig. 1 to 3, the application provides a construction method of a super large area parking garage terrace, which comprises the following steps:
s1: and cleaning the basal plane of the parking garage foundation.
Specifically, the cleaning of the basal plane of the foundation of the parking garage comprises sundry cleaning, oil removal, polishing and floating pulp removal, so that the basal plane is kept flat, clean and dry.
S2: the laying of the concrete screed 1 is carried out on the base surface by means of a laser levelling machine.
In this embodiment, the reference surface is first determined when the laser screeds are laying the concrete screed. And then paving the concrete leveling layer by taking the reference surface as a reference.
The method comprises the steps of selecting a proper position on a construction site to erect an adjusting bracket, enabling horizontal bubbles on a top platform of the adjusting bracket to be positioned in a black ring of a measuring machine, installing a laser transmitter on the bracket, turning on a laser transmitter power supply, enabling the laser transmitter to emit rotary laser beams about 30 seconds, finding out +/-0.00 elevation points on the construction site, marking, leveling the bottoms of the +/-0.00 elevation points, enabling a handheld rod provided with a handheld laser receiver to stand on the +/-0.00 elevation point plane, turning on the handheld laser receiver, keeping the flat bubbles of the receiver in the black ring, moving the handheld receiver up and down to enable the height of the handheld receiver to be positioned at the +/-0.00 point, and then fixing the handheld receiver to ensure that the height difference accuracy of the laser receiver is ensured to be within 0.5 mm. The lower ends of the hand-held rods of the hand-held laser receivers with measured elevation are clamped at the two ends of the scraping plate, the scraping plate is ensured to be horizontal, and the height values of the left end and the right end are displayed the same.
After the reference surface is determined, the laser leveling machine is started, a plurality of working procedures such as stirring, leveling, vibrating and tamping are integrated together, the working procedures are completed at one time by the machine, the elevation is automatically controlled by the laser measurement and control system, the designed elevation of the top surface of the terrace is automatically controlled by the computer of the laser, the elevation of the ground is ensured to be consistent, the ground is ensured to be level, and the leveling is directly realized on the concrete layer.
S3: the parking garage is divided into a parking area, a horizontal traffic lane area and a ramp area.
In the present embodiment, the parking area is mainly used for an area where the vehicle is statically parked. The horizontal travel lane area is a horizontal plane area of the vehicle travel area. The corresponding ramp region is a sloped region of the vehicle travel region, such as an uphill or downhill lane, having a sloped incline.
S4: the first surface layer structure 2 is constructed on the concrete leveling layer 1 of the parking area, and when the first surface layer structure 2 is constructed, a solvent-free asparagus polyurea composite primer layer 21 with the thickness of 0.8mm, a solvent-free asparagus polyurea elastic middle paint layer 22 with the thickness of 1mm and a solvent-free super wear-resistant top paint layer 23 with the thickness of 0.2mm are paved on the concrete leveling layer 1 from bottom to top.
For a parking area of static parking, a high-elastic mute anti-skid asparagus polyurea surface layer with the thickness of 2mm, namely a first surface layer structure, is adopted.
Wherein the solvent-free aspen polyurea composite primer layer 21 of the first facing structure 2 comprises: a solvent-free asparagus polyurea primer layer 211 of 0.3mm thickness, a solvent-free asparagus polyurea mortar paint layer 212 of 0.4mm thickness, and a solvent-free asparagus polyurea top paint layer 213 of 0.1mm thickness.
A 0.3mm thick solvent free aspen polyurea primer layer 211 was applied to the concrete screed 1. A 0.4mm thick solvent-free asparagus polyurea mortar paint layer 212 was laid over the solvent-free asparagus polyurea lower paint layer and mixed with a first fine sand. A 0.1mm thick solvent-free asparagus polyurea top paint layer 213 was applied to the solvent-free asparagus polyurea mortar paint layer.
As a preferred embodiment, the first fine sand is 70-120 mesh sand.
S5: the second surface layer structure 3 is constructed on the concrete leveling layer 1 in the horizontal traffic lane area, and when the second surface layer structure 3 is constructed, a solvent-free asparagus polyurea composite primer layer 31 with the thickness of 2mm, a solvent-free asparagus polyurea elastic middle paint layer 32 with the thickness of 1.8mm and a solvent-free super wear-resistant finish paint layer 33 with the thickness of 0.2mm are paved on the concrete leveling layer 1 from bottom to top.
For the horizontal traffic lane area, a 4mm thick high-elastic silent anti-skid aspen polyurea surface layer, namely a second surface layer structure, is adopted.
Wherein the solvent-free aspen polyurea composite primer layer 31 of the second facing structure 3 comprises: a solvent-free aspen polyurea primer layer 311 of 0.3mm thickness, a solvent-free aspen polyurea mortar paint layer 312 of 1.4mm thickness, and a solvent-free aspen polyurea top paint layer 313 of 0.3mm thickness.
Wherein a solvent-free aspen polyurea primer layer 311 of 0.3mm thickness is laid over the concrete screed 1. A 1.4mm thick solvent-free asparagus polyurea mortar paint layer 312 was laid over the solvent-free asparagus polyurea primer layer and mixed with a second fine sand. A 0.3mm thick solvent-free asparagus polyurea top paint layer 313 was laid over the solvent-free asparagus polyurea mortar paint layer.
As a preferred embodiment, the second fine sand is 70-120 mesh fine sand.
S6: the third surface layer structure 4 is constructed on the concrete leveling layer 1 in the ramp area, and when the third surface layer structure 4 is constructed, a solvent-free asparagus polyurea primer layer 41 with the thickness of 0.3mm, a solvent-free asparagus polyurea mixed sand composite middle paint layer 42 with the thickness of 5.4mm and a solvent-free super wear-resistant finish paint layer 43 with the thickness of 0.3mm are paved on the concrete leveling layer 1 from bottom to top.
For the ramp area, a 6mm thick granular anti-skid aspen polyurea mortar surface layer, namely a third surface layer structure, is adopted.
Wherein the solvent-free asparagus polyurea hybrid midcoat layer 42 comprises: a 2.8mm thick solvent-free aspen polyurea mortar paint 421 and a 2.6mm thick solvent-free aspen polyurea mortar paint 422.
Specifically, a 2.8mm thick solvent-free aspen polyurea mortar paint 421 was laid on the solvent-free aspen polyurea primer layer and mixed with quartz sand. Solvent-free asparagus polyurea mortar paint 422 of 2.6mm thickness is laid on the solvent-free asparagus polyurea mortar paint and mixed with diamond sand.
As a preferred embodiment, 40-70 mesh quartz sand is used.
As a preferred embodiment, the Jin Gangyu sand is 20-40 mesh corundum sand.
In this example, solvent-free super wear resistant top coats, solvent-free aspen polyurea elastic middle coats, solvent-free aspen polyurea primers, and solvent-free aspen polyurea mortar paints all used aspen polyurea waterproof coatings. The asparaguses are macromolecular polymers obtained by the reaction of aliphatic isocyanate and polyaspartate, belong to the category of aliphatic polyureas, are aliphatic secondary amine chain extenders, and have the following molecular structures:
the 2 secondary amines in the structure are affected by steric hindrance and combined with an electron-induced effect, which act together to slow down the reaction of the PAE with the NCO groups in the isocyanate component, so that the PAE polyurea reacts more slowly. X in the PAE structure can be substituted by groups with different structures to obtain a series of PAE derivatives, so that PAE polyurea with different hard segment contents can be obtained, and the curing mechanism of the PAE polyurea reacted with isocyanate is shown as follows.
The application discloses a construction method of an ultra-large-area parking garage terrace, which is a construction method for preparing an anti-slip mute terrace by adopting an asparagus polyurea paint for the ultra-large-area parking garage. In addition, adopt different structures and way to the different regions of garage parking for parking stall region adopts 2mm thick high-elastic silence anti-skidding asparagus polyurea surface course, and the lane region adopts 4mm thick high-elastic silence anti-skidding asparagus polyurea surface course, and car ramp region adopts 6mm thick granule anti-skidding asparagus polyurea mortar surface course, satisfies the demand of different regions to different degree such as wear-resisting, antiskid, silence, avoids the garage parking terrace to break, drop, improves its scratch resistance, wearability, weatherability, life. On the other hand, the leveling layer is constructed by adopting advanced technologies such as a laser leveling machine, the construction is efficient, the quality is improved, a plurality of working procedures such as stirring, leveling, vibrating and tamping are integrated together, the leveling layer is finished at one time by a machine, the laser leveling machine automatically finds a slope, the construction is efficient, and the construction quality is greatly improved.
The ultra-large area parking garage terrace provided by the application adopts an asparagus polyurea terrace, has the characteristics of high hardness, high brightness, high fullness, high weather resistance, gao Rouren, high scratch resistance and the like, and is excellent in performance and convenient and fast in construction method.
The above description is only illustrative of the preferred embodiments of the present application and of the principles of the technology employed. It will be appreciated by persons skilled in the art that the scope of the application referred to in the present application is not limited to the specific combinations of the technical features described above, but also covers other technical features formed by any combination of the technical features described above or their equivalents without departing from the inventive concept. Such as the above-mentioned features and the technical features disclosed in the present application (but not limited to) having similar functions are replaced with each other.
Claims (8)
1. The construction method of the ultra-large area parking garage terrace is characterized by comprising the following steps of:
cleaning a basal plane of a parking garage foundation;
paving a concrete leveling layer on the base surface through a laser leveling machine;
dividing the parking garage into a parking area, a horizontal traffic lane area and a ramp area;
constructing a first surface layer structure on a concrete leveling layer of the parking area, wherein when the first surface layer structure is constructed, a solvent-free asparagus polyurea composite primer layer with the thickness of 0.8mm, a solvent-free asparagus polyurea elastic middle paint layer with the thickness of 1mm and a solvent-free super wear-resistant top paint layer with the thickness of 0.2mm are paved on the concrete leveling layer from bottom to top;
constructing a second surface layer structure on a concrete leveling layer in the horizontal traffic lane area, wherein when the second surface layer structure is constructed, a solvent-free asparagus polyurea composite primer layer with the thickness of 2mm, a solvent-free asparagus polyurea elastic middle paint layer with the thickness of 1.8mm and a solvent-free super wear-resistant finish paint layer with the thickness of 0.2mm are paved on the concrete leveling layer from bottom to top;
and constructing a third surface layer structure on the concrete leveling layer in the ramp area, wherein when the third surface layer structure is constructed, a solvent-free asparagus polyurea primer layer with the thickness of 0.3mm, a solvent-free asparagus polyurea mixed sand composite middle paint layer with the thickness of 5.4mm and a solvent-free super wear-resistant finish paint layer with the thickness of 0.3mm are paved on the concrete leveling layer from bottom to top.
2. The method for constructing an oversized parking garage terrace according to claim 1, wherein the solvent-free aspen polyurea composite primer layer of the first facing structure comprises:
a solvent-free asparagus polyurea lower paint layer with the thickness of 0.3mm is paved on the concrete leveling layer;
a solvent-free asparagus polyurea mortar paint layer with the thickness of 0.4mm, which is paved on the solvent-free asparagus polyurea lower paint layer and is mixed with first fine sand;
and a solvent-free asparagus polyurea paint layer with the thickness of 0.1mm is paved on the solvent-free asparagus polyurea mortar paint layer.
3. The construction method of the ultra-large area parking garage terrace according to claim 2, wherein the first fine sand is 70-120 mesh sand.
4. The method for constructing an oversized parking garage terrace according to claim 1, wherein the solvent-free aspen polyurea composite primer layer of the second facing structure comprises:
a solvent-free asparagus polyurea lower paint layer with the thickness of 0.3mm is paved on the concrete leveling layer;
a solvent-free asparagus polyurea mortar paint layer with the thickness of 1.4mm, which is laid on the solvent-free asparagus polyurea lower paint layer and mixed with second fine sand;
and a solvent-free asparagus polyurea paint layer with the thickness of 0.3mm is paved on the solvent-free asparagus polyurea mortar paint layer.
5. The construction method of the ultra-large area parking garage terrace according to claim 4, wherein the second fine sand is 70-120 mesh fine sand.
6. The method for constructing an oversized parking garage terrace according to claim 1, wherein the solvent-free asparaginic polyurea mixed sand composite middle paint layer comprises:
2.8mm thick solvent-free asparagus polyurea mortar paint which is paved on the solvent-free asparagus polyurea primer layer and mixed with quartz sand; and
2.6mm thick solvent-free asparagus polyurea mortar paint, laid in the solvent-free asparagus polyurea mortar paint and mixed with diamond sand.
7. The construction method of the ultra-large area parking garage terrace according to claim 6, wherein the quartz sand is 40-70 mesh quartz sand.
8. The construction method of the ultra-large area parking garage terrace according to claim 6, wherein Jin Gangyu sand is 20-40 mesh corundum sand.
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| CN202210974873.7A CN115095104B (en) | 2022-08-15 | 2022-08-15 | Construction method of ultra-large-area parking garage terrace |
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| CN202210974873.7A CN115095104B (en) | 2022-08-15 | 2022-08-15 | Construction method of ultra-large-area parking garage terrace |
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| CN115095104B true CN115095104B (en) | 2023-09-12 |
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| CN108343213A (en) * | 2018-01-13 | 2018-07-31 | 银广厦集团有限公司 | A kind of underground parking garage epoxy resin mortar abrasion-proof terrace and construction method |
| CN215167607U (en) * | 2020-12-30 | 2021-12-14 | 浙江艾特普科技有限公司 | PAE multilayer composite terrace structure |
| CN215670790U (en) * | 2021-09-07 | 2022-01-28 | 山东科鸿新材料技术有限公司 | Modified polyurea buddha's warrior attendant terrace |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010061028A (en) * | 1999-12-28 | 2001-07-07 | 김윤철 | Polyurea Waterproofing Sheet and Waterproofing method using the same |
| CN202544328U (en) * | 2012-03-08 | 2012-11-21 | 深圳市威尔地坪材料有限公司 | Outdoor composite grade level |
| JP2016151126A (en) * | 2015-02-17 | 2016-08-22 | 株式会社ダイフレックス | Anti-skid floor and parking lot, and construction method for anti-skid floor |
| KR101704756B1 (en) * | 2015-11-13 | 2017-02-09 | 박찬규 | Flooring materials composition and finishing method of flooring materials by using same |
| AT15324U1 (en) * | 2016-04-27 | 2017-06-15 | Flexiskin Gmbh | surface covering |
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| CN108343213A (en) * | 2018-01-13 | 2018-07-31 | 银广厦集团有限公司 | A kind of underground parking garage epoxy resin mortar abrasion-proof terrace and construction method |
| CN215167607U (en) * | 2020-12-30 | 2021-12-14 | 浙江艾特普科技有限公司 | PAE multilayer composite terrace structure |
| CN215670790U (en) * | 2021-09-07 | 2022-01-28 | 山东科鸿新材料技术有限公司 | Modified polyurea buddha's warrior attendant terrace |
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| Publication number | Publication date |
|---|---|
| CN115095104A (en) | 2022-09-23 |
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