CN220827355U - Double-sided tape capable of being bonded with post-cast concrete and construction structure - Google Patents
Double-sided tape capable of being bonded with post-cast concrete and construction structure Download PDFInfo
- Publication number
- CN220827355U CN220827355U CN202322620283.7U CN202322620283U CN220827355U CN 220827355 U CN220827355 U CN 220827355U CN 202322620283 U CN202322620283 U CN 202322620283U CN 220827355 U CN220827355 U CN 220827355U
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- Prior art keywords
- double
- adhesive
- tape
- post
- sided tape
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- 239000004567 concrete Substances 0.000 title claims abstract description 54
- 238000010276 construction Methods 0.000 title claims abstract description 44
- 239000002390 adhesive tape Substances 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000000853 adhesive Substances 0.000 claims abstract description 26
- 230000000181 anti-adherent effect Effects 0.000 claims abstract description 26
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 25
- 239000011248 coating agent Substances 0.000 claims abstract description 22
- 238000000576 coating method Methods 0.000 claims abstract description 22
- 230000007704 transition Effects 0.000 claims abstract description 7
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 14
- 229920001971 elastomer Polymers 0.000 claims description 14
- 230000035515 penetration Effects 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 8
- 238000004078 waterproofing Methods 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000010410 layer Substances 0.000 abstract description 44
- 230000000149 penetrating effect Effects 0.000 abstract description 9
- 230000005465 channeling Effects 0.000 abstract description 5
- 239000002346 layers by function Substances 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 29
- 239000003292 glue Substances 0.000 description 12
- 239000012790 adhesive layer Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002585 base Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Adhesive Tapes (AREA)
Abstract
The utility model discloses a double-sided tape capable of being bonded with post-cast concrete and a construction structure, relating to the technical field of construction, comprising the following steps: the top of the waterproof reinforcing layer is covered with an anti-adhesive coating; the release film is covered at the bottom of the waterproof reinforcing layer through self-adhesive; the thickness of the waterproof reinforcing layer is 0.05-1.5mm; one surface of the double-sided adhesive tape can be bonded with a base layer or a part to be lapped or repaired, and the other surface of the double-sided adhesive tape is provided with a special composite functional layer which can be bonded with post-cast concrete and has a waterproof function for a concrete structure. The construction structure formed in this way can ensure the continuity of the waterproof functional layer, can also be used for the combination transition layer of the penetrating piece and the post-cast concrete, and ensures the water channeling resistance between the post-cast concrete and the penetrating piece.
Description
Technical Field
The utility model belongs to the technical field of construction, and particularly relates to a double-sided adhesive tape capable of being adhered to post-cast concrete and a construction structure.
Background
The waterproof roll which can be bonded to post-cast concrete is called "pre-laid roll", "counter-adhesive roll" or "pre-laid counter-adhesive roll". The coiled material is characterized in that the coiled material is directly paved on a building base layer, then concrete is poured or sprayed on the upper surface of the coiled material, and full adhesion is formed with the coiled material in the concrete curing process, so that the protection is provided for a concrete building. The sealing treatment of the parts such as short-side lap joint, free cutting opening of node parts, coiled material repair and the like is also critical in the construction process of pre-paving coiled materials, and in the case of waterproof failure, the waterproof weak points are caused due to improper treatment of detail nodes, lap joints and repair parts in many cases.
Disclosure of utility model
The utility model aims at overcoming the defects of the prior art, and provides a double-sided adhesive tape capable of being bonded with post-cast concrete and a construction structure. The construction structure formed in this way can ensure the continuity of the waterproof functional layer, can also be used for the combination transition layer of the penetrating piece and the post-cast concrete, and ensures the water channeling resistance between the post-cast concrete and the penetrating piece.
In order to achieve the above object, the present utility model provides a double-sided tape having a structure capable of being bonded to post-cast concrete, comprising:
the top of the waterproof reinforcing layer is covered with an anti-adhesive coating;
The release film is covered at the bottom of the waterproof reinforcing layer through self-adhesive;
the thickness of the waterproof reinforcing layer is 0.05-1.5mm.
Optionally, the anti-adhesive coating is connected with the waterproof reinforcing layer through anti-adhesive self-adhesive glue.
Optionally, the self-adhesive and the anti-adhesive self-adhesive comprise pressure-sensitive adhesives, and the thickness of the pressure-sensitive adhesives is 0.05-1.5mm.
The utility model also provides a construction structure which comprises the double-sided adhesive tape capable of being adhered to post-cast concrete.
Optionally, when the double-sided tape is used as a lap-joint adhesive tape of a pre-laid waterproof roll, the overlapping width of the double-sided tape and the short side of the adjacent waterproof roll is more than 5cm, and the double-sided tape is arranged on the lap joint of the adjacent waterproof roll in a centered manner.
Optionally, the double-sided tape is disposed on a lap seam between a long side of the waterproof roll and a short side of the waterproof roll adjacent thereto.
Optionally, when the double-sided adhesive tape is used as the sealing adhesive tape at the junction of the construction gap, the adhering position of the double-sided adhesive tape corresponds to the construction gap.
Alternatively, when used as a blocking tape for the edge of a rubber water stop, the double-sided tape is adhered to the outer periphery of the rubber water stop.
Alternatively, the double-sided tape is wound around the periphery of the penetration piece when it is used as a transition layer where the penetration piece is bonded to post-cast concrete.
Alternatively, when the adhesive tape is closed as a staple, the end of the staple is covered with the double-sided adhesive tape.
The utility model provides a double-sided tape capable of being bonded with post-cast concrete and a construction structure, which have the beneficial effects that: the double-sided adhesive tape can be bonded with a base layer or a lapped material, so that a continuous waterproof layer formed by the waterproof layer is ensured, the double-sided adhesive tape can be bonded with post-cast concrete, the continuous bonding of the base layer or the bonded layer with the post-cast concrete is ensured, a lateral water channeling passage is avoided, the double-sided adhesive tape can also be used as an adhesive tape for pre-paving waterproof roll detail node treatment, and the double-sided adhesive tape can also be used as a transition layer for bonding a penetrating piece and the post-cast concrete.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular descriptions of exemplary embodiments of the utility model as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the utility model.
Fig. 1 shows a schematic illustration of a construction of a double-sided adhesive tape with a bondable post-cast concrete according to an embodiment of the present utility model.
Fig. 2 shows a schematic diagram of a construction of a double-sided adhesive tape with a bondable post-cast concrete according to an embodiment of the present utility model.
Fig. 3 shows a schematic view of a double-sided tape with a splice to post-cast concrete at the short-side overlap of the roll of waterproof material according to an embodiment of the utility model.
Fig. 4 shows a schematic view of a double-sided tape with a bondable post-cast concrete at a floor side wall interface construction joint according to an embodiment of the present utility model.
Fig. 5 shows a schematic view of a double sided tape with a post-cast concrete bondable to the edge of a rubber water stop according to an embodiment of the present utility model.
Fig. 6 shows a schematic view of a double-sided tape with a bondable post-cast concrete at a sidewall penetration according to an embodiment of the present utility model.
Fig. 7 shows a schematic view of a double-sided tape with a double-sided tape that can be adhered to post-cast concrete at a staple according to one embodiment of the utility model.
Reference numerals illustrate:
1. A waterproof reinforcing layer; 2. a reverse adhesive coating; 3. a release film; 4. self-adhesive; 5. anti-sticking self-adhesive; 6. double-sided tape; 7. waterproof coiled materials; 8. constructing a gap; 9. a rubber water stop; 10. a penetration; 11. fixing nails; 12. bridging the edge adhesive layer; 13. a concrete cushion layer; 14. a waterproof layer; 15. a steel plate water stop; 16. a side wall; 17. a reinforced concrete bottom plate; 18. pre-paving a waterproof coiled material I; 19. a concrete floor; 20. a construction joint; 21. permanent guide walls; 22. waterproof coiled materials on the guide wall; 23. a coiled material; 24. a water-swelling water stop strip; 25. plain soil; 26. a retaining wall; 27. and pre-paving a second waterproof coiled material.
Detailed Description
Preferred embodiments of the present utility model will be described in more detail below. While the preferred embodiments of the present utility model are described below, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.
The utility model provides a double-sided adhesive tape capable of being adhered to post-cast concrete, comprising:
the top of the waterproof reinforcing layer is covered with an anti-adhesive coating;
The release film is covered at the bottom of the waterproof reinforcing layer through self-adhesive;
the thickness of the waterproof reinforcing layer is 0.05-1.5mm.
Specifically, the double-sided adhesive tape is of a multi-layer structure, the anti-adhesive coating is arranged on the upper surface of the waterproof reinforcing layer, and the lower surface of the waterproof reinforcing layer is sequentially provided with a self-adhesive and a release film; wherein the waterproof reinforcing layer provides physical strength, toughness and continuous waterproof layer for the adhesive tape, and the thickness of the waterproof reinforcing layer ranges from 0.05mm to 1.5mm, and has a flat surface. The waterproof reinforcing layer is at least one of polyolefin homopolymer or copolymer, ethylene-vinyl acetate copolymer, polyvinyl chloride, polyester, polyamide and polyurethane, and the higher molecular weight polyolefin material is adopted, so that the better the impact resistance is. The double-sided adhesive tape adopts the anti-adhesive tape with the anti-adhesive layer as the anti-adhesive coating, can be adhered to post-pouring concrete, has high water resistance, alkali resistance and weather resistance, is free from cracking after long-term immersion, has a long-term exposure and no cracking, improves the waterproof quality, has an anti-adhesive roll function, can be used for construction by people, and improves the construction efficiency.
In one embodiment, the anti-adhesive layer is prepared from a coating, and the coating can be classified into a water-based coating or a solvent-based coating, wherein the coating comprises a high polymer emulsion or a high polymer solution, a pigment filler and a coating auxiliary agent, and a compact waterproof coating can be formed by containing the high polymer emulsion with small particle size, so that the water resistance of the coating is improved.
Optionally, the anti-adhesive coating is connected to the waterproof reinforcement layer by an anti-adhesive self-adhesive.
Optionally, the self-adhesive glue and the anti-adhesive self-adhesive glue comprise pressure-sensitive adhesives, and the thickness of the pressure-sensitive adhesives is 0.05-1.5mm.
Specifically, the double-sided tape can be classified into two types according to whether or not an anti-adhesive self-adhesive is provided between the anti-adhesive coating and the waterproof reinforcing layer. The anti-sticking self-adhesive glue and the self-adhesive glue are respectively arranged on the upper surface and the lower surface of the waterproof reinforcing layer to form glue layers, the glue layers are composed of pressure-sensitive adhesives, the pressure-sensitive adhesives comprise at least one of styrene segmented copolymer hot-melt pressure-sensitive adhesives, butyl glue, modified asphalt glue, acrylic pressure-sensitive adhesives, silane modified pressure-sensitive adhesives and polyurethane pressure-sensitive adhesives, and the thickness of the glue layers is controlled within 0.05-1.5 mm.
The utility model also provides a construction structure which comprises the double-sided adhesive tape capable of being adhered to post-cast concrete.
Optionally, when the overlap adhesive tape of the pre-laid waterproof roll is used, the overlapping width of the double-sided adhesive tape and the short side of the adjacent waterproof roll is more than 5cm, and the double-sided adhesive tape is arranged on the overlap joint of the adjacent waterproof roll in a centered manner.
Optionally, a double-sided tape is provided on the lap seam of the long side of the waterproof roll and the short side of the adjacent waterproof roll.
Specifically, the double-sided adhesive tape is applied to the pre-paved waterproof coiled materials for paving, the pre-paved waterproof coiled materials are paved normally, the long-side lap joint is carried out by adopting a self-adhesive layer carried by the pre-paved waterproof coiled materials, the lap joint is carried out at the lap joint position of the short sides of the pre-paved waterproof coiled materials by adopting the double-sided adhesive tape, the double-sided adhesive tape is overlapped with the adjacent two pre-paved waterproof coiled materials by more than 5cm, and then the double-sided adhesive tape is stuck on the lap joint in the middle by adopting the adhesive tape with the width of 16 cm; bonding and sealing treatment is carried out on the lap joint of the long side and the short side of the pre-paved waterproof coiled material by adopting a 10cm double-sided adhesive tape; the double-sided adhesive tape has an adhesive effect on one side adhered to post-cast concrete, so that the double-sided adhesive tape has an effect of preventing lateral water channeling while being lapped with a pre-laid waterproof coiled material.
Alternatively, when the double-sided tape is used as a sealing tape at the junction of the construction gap, the adhering position of the double-sided tape corresponds to the construction gap.
Specifically, the double-sided tape is applied to the junction of the construction joint, according to the position of the construction joint, when the construction joint is positioned at the junction of the bottom plate and the side wall, a waterproof coiled material is pre-paved, then the double-sided tape is stuck on the waterproof coiled material, the middle part of the double-sided tape is aligned with the construction joint, and finally post-pouring concrete casting is carried out, so that a reinforcing tape layer which can be bonded with the post-pouring concrete is ensured to be formed at the construction joint; when the construction joint is positioned on the bottom plate, the double-sided tape is horizontally paved and stuck above the construction joint according to the same construction steps, and the centering alignment of the double-sided tape and the construction joint is ensured, so that the lateral water channeling can be prevented.
Alternatively, when used as a blocking tape for the edge of the rubber water stop, the double-sided tape is adhered to the outer periphery of the rubber water stop.
Specifically, the double-sided tape is applied around the rubber water stop, and the double-sided tape is paved at the edge of the rubber water stop due to the fact that the rubber material and the post-cast concrete have no bonding effect, so that the post-cast concrete can be bonded with the double-sided tape, water flow can be prevented from seeping from the edge of the rubber water stop, and water can be limited in a path paved by the water stop.
Alternatively, when used as a transition layer for bonding the penetration to post-cast concrete, the double-sided tape is wrapped around the circumference of the penetration.
Specifically, the double-sided adhesive tape is applied to the side wall penetrating piece, the waterproof coiled material is pre-paved on the outer wall of the side wall penetrating piece, the receiving head of the waterproof coiled material is arranged on the outer wall of the side wall, then the double-sided adhesive tape is covered on the waterproof coiled material, the edge of the waterproof coiled material is completely covered, finally, concrete is poured after pouring, the penetrating position is bonded and sealed, and water leakage between the penetrating piece and the concrete poured after pouring can be avoided.
Alternatively, when the tape is closed as a staple, the ends of the staple are covered with double-sided tape.
Specifically, apply double-sided tape on the staple, the staple is fixed waterproofing membrane on standing the wall, then cover double-sided tape in the outside of staple, wrap up and bond the end of staple, play the effect of sealed nail through hole to be convenient for here with post-cast concrete bonding. The mode can also be adopted to carry out pasting treatment on the exposed end of the anchor rod, thereby playing the roles of protection and sealing and preventing water leakage from the end part of the anchor rod.
In addition, can also use the double faced adhesive tape in bottom plate pile head department, lay waterproofing membrane in advance around the bottom plate pile head, guarantee to receive first extreme point on the pile head outer wall, then cover double faced adhesive tape on waterproofing membrane to double faced adhesive tape covers on waterproofing membrane's receipts head, pour the concrete after pouring at last, have bonding seal in the handing-over position of pile head and concrete bottom plate, avoid leaking.
Examples
As shown in fig. 1 to 7, the present utility model provides a double-sided tape having a structure to be adhered to post-cast concrete, comprising:
The top of the waterproof reinforcing layer 1 is covered with an anti-adhesive coating 2;
a release film 3 which is covered on the bottom of the waterproof reinforcing layer 1 through a self-adhesive 4;
The thickness of the waterproof reinforcing layer 1 is 0.05-1.5mm.
In this embodiment, the anti-adhesive coating 2 is connected to the waterproof reinforcement 1 layer by an anti-adhesive self-adhesive 5.
In this embodiment, the self-adhesive glue 4 and the anti-adhesive self-adhesive glue 5 each comprise a pressure-sensitive adhesive, and the thickness of the pressure-sensitive adhesive is 0.05-1.5mm.
The utility model also provides a construction structure which comprises the double-sided adhesive tape 6 capable of being adhered with post-cast concrete.
In the present embodiment, when the overlap tape is a pre-laid waterproof roll, the overlapping width of the double-sided tape 6 and the short side of the adjacent waterproof roll 7 is 5cm or more, and the double-sided tape 6 is provided centrally on the overlap joint of the adjacent waterproof roll 7.
In the present embodiment, the double-sided tape 6 is provided on the lap seam of the long side of the waterproof roll 7 and the short side of the adjacent waterproof roll.
In the present embodiment, when the double-sided tape 6 is used as a sealing tape at the junction of the construction gap, the adhering position of the double-sided tape 6 corresponds to the construction gap 8.
In the present embodiment, when used as a blocking tape for the edge of the rubber water stop, the double-sided tape 6 is adhered to the outer periphery of the rubber water stop 9.
In the present embodiment, the double-sided tape 6 is wound around the outer circumference of the penetration 10 as a transition layer where the penetration is bonded to post-cast concrete.
In this embodiment, when the tape is closed as a staple, the end of the staple 11 is covered with the double-sided tape 6.
To sum up, in the place that needs to carry out waterproof treatment, paste the double-sided tape 6 in the junction of waterproofing membrane 7 and other materials, then carry out the post cast concrete on anti-adhesive coating 2, can improve the water-proof effects like this, avoid appearing the side direction and scurrying the water problem.
The foregoing description of embodiments of the utility model has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.
Claims (10)
1. A double-sided tape having a capability of adhering to post-cast concrete, comprising:
the top of the waterproof reinforcing layer is covered with an anti-adhesive coating;
The release film is covered at the bottom of the waterproof reinforcing layer through self-adhesive;
the thickness of the waterproof reinforcing layer is 0.05-1.5mm.
2. The double-sided tape with adhesion to post-cast concrete according to claim 1, wherein the anti-adhesive coating is connected to the waterproof reinforcement layer by anti-adhesive self-adhesive.
3. The double-sided tape with the capability of adhering to post-cast concrete according to claim 2, wherein the self-adhesive and the anti-adhesive self-adhesive each comprise a pressure-sensitive adhesive, and the thickness of the pressure-sensitive adhesive is 0.05-1.5mm.
4. A construction structure comprising a double-sided tape according to any one of claims 1 to 3, which is bondable to post-cast concrete.
5. The construction structure according to claim 4, wherein when the overlap tape of the waterproofing membrane is pre-laid, the overlap width of the double-sided tape and the short side of the adjacent waterproofing membrane is 5cm or more, and the double-sided tape is provided centrally on the overlap joint of the adjacent waterproofing membrane.
6. The construction structure according to claim 5, wherein the double-sided tape is provided on a lap seam between a long side of the waterproof roll and a short side adjacent to the waterproof roll.
7. The construction structure according to claim 4, wherein the double-sided tape is attached at a position corresponding to the construction gap when the double-sided tape is used as a sealing tape at the junction of the construction gap.
8. The construction structure according to claim 4, wherein the double-sided tape is adhered to the outer periphery of the rubber water stop when used as a blocking tape for the edge of the rubber water stop.
9. The construction structure according to claim 4, wherein the double-sided tape is wound around the periphery of the penetration when the penetration is used as a transition layer for bonding the penetration to post-cast concrete.
10. The construction structure according to claim 4, wherein the end of the fixing pin is covered with the double-sided adhesive tape when the fixing pin is used as the fixing pin closing adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322620283.7U CN220827355U (en) | 2023-09-26 | 2023-09-26 | Double-sided tape capable of being bonded with post-cast concrete and construction structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322620283.7U CN220827355U (en) | 2023-09-26 | 2023-09-26 | Double-sided tape capable of being bonded with post-cast concrete and construction structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220827355U true CN220827355U (en) | 2024-04-23 |
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ID=90726210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322620283.7U Active CN220827355U (en) | 2023-09-26 | 2023-09-26 | Double-sided tape capable of being bonded with post-cast concrete and construction structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220827355U (en) |
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2023
- 2023-09-26 CN CN202322620283.7U patent/CN220827355U/en active Active
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