CN211546395U - Double-sided adhesive tape - Google Patents
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- CN211546395U CN211546395U CN201921315627.0U CN201921315627U CN211546395U CN 211546395 U CN211546395 U CN 211546395U CN 201921315627 U CN201921315627 U CN 201921315627U CN 211546395 U CN211546395 U CN 211546395U
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Abstract
The utility model provides a double-sided adhesive tape, which comprises a first film layer, a first adhesive layer, a base material layer, a second adhesive layer, a release agent layer and a second film layer which are combined together from top to bottom; this double faced adhesive tape, adsorb through the dustproof point on the one hand, the production of greatly reduced static has better antistatic effect, the operational safety has been improved, the difference of the first glue film of on the other hand and the peeling strength of second glue film, when laminating, laminate light peeling strength one side earlier, when the laminating effect is not good, be convenient for tear and laminate again, then can repeat the operability higher, the range of application is wide, not only can closely laminate electronic product and tempering membrane, and easy to operate, be convenient for peel off, can be used to laminating and protection of electronic product.
Description
Technical Field
The utility model belongs to the glue field relates to a double faced adhesive tape.
Background
The double-sided adhesive tape is mainly applied to the joint protection effect in the electronic product industry, and is particularly used for protecting some electronic display panels to prevent the screen from being scratched in the transportation and use processes. The main material used by the traditional double-sided adhesive tape used in the market at present is a PET substrate. The polyester film (PET) is a film material which is prepared by using polyethylene glycol terephthalate as a raw material, preparing a thick sheet by an extrusion method and performing biaxial tension. Can be widely used in the toughened glass industry, the building material industry, the printing industry and the medical and health. However, because the material has poor electric conduction capability, static electricity is easy to accumulate in the using process and cannot be conducted out, so that the phenomenon of electrostatic dust adsorption points is easy to generate in the processing and using processes, and the yield of final products is low.
CN207736890U discloses a PET silica gel protective film, which comprises an outer PET film layer, an upper PET film layer, an OCA glue layer, a lower PET film layer, a lower silica gel layer and a release layer which are sequentially arranged; the outer PET film layer, the upper PET film layer, the OCA adhesive layer, the lower PET film layer, the lower silica gel layer and the release layer are bonded through adhesive layers, and the adhesive layers are acrylate pressure-sensitive adhesives; the outer surface of the outer PET film layer is provided with a protective layer and an anti-static layer; a hardening coating is also arranged between the outer PET film layer and the upper PET film layer; the utility model discloses a have better wearability and explosion-proof effect, but do not mention and have antistatic effect.
CN106079796A discloses a transparent PET double-sided antistatic release film and a manufacturing process thereof, wherein the transparent PET double-sided antistatic release film comprises a first PET transparent release layer, a first bonding layer, a PET substrate layer, a second bonding layer and a second PET transparent release layer; the first PET transparent release layer, the first adhesive layer, the PET substrate layer, the second adhesive layer and the second PET transparent release layer are sequentially overlapped together from bottom to top; the first bonding layer and the second bonding layer are respectively composed of the following raw materials in parts by mass: 55-75 parts of polyurethane resin, 5-8 parts of solvent, 20-30 parts of curing agent, 11-15 parts of antistatic agent, 5-8 parts of high-temperature filler, 4-5 parts of plasticizer and 3-4 parts of antioxidant. The release film has the advantages of high antistatic coefficient value, good flexibility, low shrinkage rate and low reusability.
Therefore, it is necessary to develop a double-sided tape having a good antistatic effect and high reproducibility.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a double faced adhesive tape, double faced adhesive tape has antistatic effect well, and the high advantage of reuse nature.
In order to achieve the purpose of the utility model, the utility model adopts the following technical proposal:
one of the purposes of the present invention is to provide a double-sided adhesive tape, which comprises a first film layer, a first adhesive layer, a substrate layer, a second adhesive layer, a release agent layer and a second film layer from top to bottom; the peeling force of the first adhesive layer is lower than that of the second adhesive layer.
The utility model discloses in, first rete is the former rete of PET.
In the present invention, the thickness of the first membrane layer is 25-100 μm, such as 25 μm, 36 μm, 50 μm, 75 μm, 100 μm, etc., preferably 50 μm or 75 μm.
In the present invention, the first film layer has a transmittance higher than 85%, for example, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, 100%, etc.
In the present invention, the first film layer has a haze of less than 3%, for example, 0%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, etc.
In the present invention, the first film layer plays a role of protection, and the color and shape of the first film layer are not specifically limited, and those skilled in the art can adjust the first film layer according to actual needs; for example, the color may be any one of colorless and transparent, red, yellow, or blue.
In the present invention, the thickness of the first glue layer is 20-200 μm, such as 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, 110 μm, 120 μm, 130 μm, 140 μm, 150 μm, 160 μm, 170 μm, 180 μm, 190 μm, 200 μm, etc., preferably 20-50 μm.
The utility model discloses in, first glue film is the first glue film that contains anti adsorption additive, can reduce the adsorption effect of glue to the dust to reduce the production of static, thereby increase antistatic performance, improved the operational safety nature.
In the present invention, the anti-adsorption additive is illustratively selected from metal conductive powders, preferably alumina powders.
The utility model discloses in, first glue film includes anti adsorption additive and glue, and glue mainly plays the bonding effect, and wherein the kind and the concrete selection of glue do not do specifically and restrict this application, and the skilled person in the art can adjust according to actual need, exemplarily as: the glue is selected from any one or the combination of at least two of acrylic resin, organic silicon rubber or polyurethane; the addition amount of the anti-adsorption agent and the glue can be adjusted according to actual needs, such as: the addition amount of the anti-adsorption additive is 0.5-5% of the mass of the glue.
In the present invention, the first adhesive layer has a peeling force of 1 to 30gf/25mm, for example, 1gf/25mm, 3gf/25mm, 5gf/25mm, 8gf/25mm, 10gf/25mm, 12gf/25mm, 15gf/25mm, 18gf/25mm, 20gf/25mm, 22gf/25mm, 25gf/25mm, 28gf/25mm, 30gf/25mm, etc., and preferably the first adhesive layer has a peeling force of 1 to 10gf/25 mm.
The utility model discloses in, the substrate layer is the PET substrate layer.
In the present invention, the thickness of the substrate layer is 25 to 125 μm, for example 25 μm, 36 μm, 50 μm, 75 μm, 100 μm, 125 μm, etc., preferably 50 μm or 100 μm.
In the present invention, the substrate layer is a substrate layer having a transmittance higher than 90%, for example, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, 100%, or the like.
In the present invention, the substrate layer is a substrate layer having a haze of less than 1.5%, for example, 0%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1.0%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%, etc.
In the present invention, the thickness of the second adhesive layer is 20-200 μm, such as 20 μm, 30 μm, 40 μm, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, 110 μm, 120 μm, 130 μm, 140 μm, 150 μm, 160 μm, 170 μm, 180 μm, 190 μm, 200 μm, etc., preferably 50-120 μm.
The utility model discloses in, the second glue film is the second glue film that contains anti adsorption additive, can reduce the adsorption effect of glue to the dust to reduce the production of static, thereby increase antistatic performance, improved the operational safety nature.
In the present invention, the anti-adsorption additive is illustratively selected from metal conductive powders, preferably alumina powders.
The utility model discloses in, the second glue film includes anti adsorption additive and glue, and glue mainly plays the bonding effect, and wherein the kind and the concrete selection of glue do not do specific limit this application, and the skilled person in the art can adjust according to actual need, exemplarily as: the glue is selected from any one or the combination of at least two of acrylic resin, organic silicon rubber or polyurethane; the addition amount of the anti-adsorption agent and the glue can be adjusted according to actual needs, such as: the addition amount of the anti-adsorption additive is 0.5-5% of the mass of the glue.
In the present invention, the second adhesive layer has a peeling force of 500-2000gf/25mm, for example, 500gf/25mm, 600gf/25mm, 700gf/25mm, 800gf/25mm, 900gf/25mm, 1000gf/25mm, 1100gf/25mm, 1200gf/25mm, 1300gf/25mm, 1400gf/25mm, 1500gf/25mm, 1600gf/25mm, 1700gf/25mm, 1800gf/25mm, 1900gf/25mm, 2000gf/25mm, etc., preferably 800-1500gf/25 mm.
The utility model discloses in, the double faced adhesive tape has better antistatic action, in addition because first glue film and second glue film peel strength's difference, when laminating, the light peel strength one side of laminating earlier, when the laminating effect is not good, is convenient for tear and laminates again, and then can repeat the operability higher.
In the present invention, the thickness of the release agent layer is 100-600nm, such as 100nm, 150nm, 200nm, 250nm, 300nm, 350nm, 400nm, 450nm, 500nm, 550nm, 600nm, etc.
In the present invention, the release agent layer has a release force of 1-50g, such as 1g, 5g, 10g, 15g, 20g, 25g, 30g, 35g, 40g, 45g, 50g, etc.
The utility model discloses in, the release agent layer is fluorine-containing release agent layer, contains silicon release agent layer or non-silicon release agent layer.
The utility model discloses in, the second rete is the former rete of PET.
In the present invention, the thickness of the second membrane layer is 25-100 μm, such as 25 μm, 36 μm, 50 μm, 75 μm, 100 μm, etc., preferably 50 μm or 75 μm.
In the present invention, the second film layer plays a role of protection, and the color and shape of the second film layer are not specifically limited, and those skilled in the art can adjust the second film layer according to actual needs; for example, the color may be any one of colorless and transparent, red, yellow, or blue.
In the present invention, the second film layer has a transmittance higher than 85%, for example, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, 100%, etc.
In the present invention, the second film layer has a haze of less than 3%, for example, 0%, 0.5%, 1%, 1.5%, 2%, 2.5%, 3%, etc.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a double faced adhesive tape, adsorb through the dustproof point on the one hand, greatly reduced static production has better antistatic effect (dyestripping voltage is low to 0.01 KV), the operation security has been improved, on the other hand first glue film and the difference of second glue film peeling strength (the peeling strength of first glue film is 1-33gf/25mm, the peeling strength of second glue film is 480-33 gf/25mm), when laminating, laminate light peeling strength one side earlier, when the laminating effect is not good, be convenient for tear and laminate again, then repeatedly operability is higher, the range of application is wide, not only can closely laminate electronic product and tempering membrane, and easy to operate, be convenient for peel off, can be used to electronic product's laminating and protection.
Drawings
Fig. 1 is a schematic structural view of a double-sided tape in embodiment 1 of the present invention.
Detailed Description
The technical solution of the present invention will be further explained by the following embodiments. It should be understood by those skilled in the art that the described embodiments are merely provided to assist in understanding the present invention and should not be construed as specifically limiting the present invention.
Example 1
The present embodiment provides a double-sided tape, as shown in fig. 1, the double-sided tape sequentially includes, from top to bottom, a first film layer (1), a first adhesive layer (2), a substrate layer (3), a second adhesive layer (4), a release agent layer (5), and a second film layer (6); wherein the first film layer (1) is a colorless and transparent PET original film layer, the thickness is 50 μm, the transmittance is 95%, and the haze is 1%; the thickness of the first adhesive layer (2) is 40 micrometers, and the first adhesive layer comprises an anti-adsorption additive and glue, wherein the addition amount of the anti-adsorption additive is 3% of the mass of the glue, the anti-adsorption additive is aluminum oxide powder, and the glue is acrylic resin; the peeling force of the first adhesive layer (2) is 5gf/25 mm; the substrate layer (3) is made of PET material, the thickness is 50 μm, the transmittance is 95%, and the haze is 0.5%; the thickness of the second adhesive layer (4) is 100 micrometers, and the second adhesive layer comprises an anti-adsorption additive and glue, wherein the addition amount of the anti-adsorption additive is 3% of the mass of the glue, the anti-adsorption additive is aluminum oxide powder, and the glue is acrylic resin; the peeling force of the second adhesive layer (4) is 1000gf/25 mm; the release agent layer (5) is a fluorine-containing release agent layer, the thickness is 400nm, and the release force is 25 g; the second film layer (6) is a colorless and transparent PET original film layer, the thickness is 50 mu m, the transmittance is 95%, and the haze is 1%.
The double faced adhesive tape described in this embodiment is subjected to an antistatic performance test, and a specific test method of the tear film voltage is as follows: attaching the second adhesive layer of the double-sided adhesive to a screen of an electronic product, and testing the instant film tearing voltage by using a handheld static tester, wherein the film tearing voltage is 0.01 KV; the test standard of the peeling force is QB/T2424-98, the peeling force of the first adhesive layer is 6gf/25mm, the peeling force of the second adhesive layer is 1050gf/25mm, and the test standard of the light transmittance is as follows: GB/T2410-80, the measured light transmittance is 91%.
Example 2
The embodiment provides a double-sided adhesive tape, which sequentially comprises a first film layer, a first adhesive layer, a substrate layer, a second adhesive layer, a release agent layer and a second film layer from top to bottom; the peeling force of the first adhesive layer is lower than that of the second adhesive layer; wherein the first film layer is a red PET original film layer, the thickness is 75 μm, the transmittance is 98%, and the haze is 0.5%; the thickness of the first adhesive layer is 20 microns, the first adhesive layer comprises an anti-adsorption additive and glue, the addition amount of the anti-adsorption additive is 1% of the mass of the glue, the anti-adsorption additive is aluminum oxide powder, and the glue is organic silicon rubber; the peeling force of the first glue layer is 1gf/25 mm; the base material layer is made of PET (polyethylene terephthalate), the thickness of the base material layer is 100 micrometers, the transmittance is 98%, and the haze is 1%; the second adhesive layer is 50 microns thick and comprises an anti-adsorption additive and glue, the addition amount of the anti-adsorption additive is 1% of the mass of the glue, the anti-adsorption additive is aluminum oxide powder, and the glue is organic silicon rubber; the peeling force of the second adhesive layer is 800gf/25 mm; the release agent layer is a silicon-containing release agent layer, the thickness is 200nm, and the release force is 10 g; the second film layer is a red PET original film layer, the thickness of the second film layer is 75 mu m, the transmittance of the second film layer is 98%, and the haze of the second film layer is 0.5%.
The antistatic performance of the double faced adhesive tape described in the embodiment is tested, the testing method is the same as that of the embodiment 1, and the film tearing voltage is 0.01 KV; the first adhesive layer had a peel force of 1.5gf/25mm, the second adhesive layer had a peel force of 820gf/25mm, and the light transmittance was 93.5%.
Example 3
The embodiment provides a double-sided adhesive tape, which sequentially comprises a first film layer, a first adhesive layer, a substrate layer, a second adhesive layer, a release agent layer and a second film layer from top to bottom; the peeling force of the first adhesive layer is lower than that of the second adhesive layer; wherein the first film layer is a yellow PET original film layer, the thickness is 36 μm, the transmittance is 90%, and the haze is 2%; the thickness of the first adhesive layer is 50 microns, the first adhesive layer comprises an anti-adsorption additive and glue, the addition amount of the anti-adsorption additive is 4% of the mass of the glue, the anti-adsorption additive is alumina powder, and the glue is polyurethane; the peeling force of the first glue layer is 10gf/25 mm; the base material layer is made of PET material, the thickness is 75 μm, the transmittance is 92%, and the haze is 1.2%; the thickness of the second adhesive layer is 120 microns, the second adhesive layer comprises an anti-adsorption additive and glue, the addition amount of the anti-adsorption additive is 4% of the mass of the glue, the anti-adsorption additive is alumina powder, and the glue is polyurethane; the peeling force of the second glue layer is 1500gf/25 mm; the release agent layer is a fluorine-containing release agent layer, the thickness is 500nm, and the release force is 40 g; the second film layer is a yellow PET original film layer, the thickness is 36 μm, the transmittance is 90%, and the haze is 2%.
The antistatic performance of the double faced adhesive tape described in the embodiment is tested, the testing method is the same as that of the embodiment 1, and the film tearing voltage is 0.01 KV; the first adhesive layer had a peel force of 9gf/25mm, the second adhesive layer had a peel force of 1550gf/25mm, and the light transmittance was 90%.
Example 4
The embodiment provides a double-sided adhesive tape, which sequentially comprises a first film layer, a first adhesive layer, a substrate layer, a second adhesive layer, a release agent layer and a second film layer from top to bottom; the peeling force of the first adhesive layer is lower than that of the second adhesive layer; wherein the first film layer is a PET original film layer, the thickness is 25 μm, the color is blue, the transmittance is 85 percent, and the haze is 3 percent; the thickness of the first adhesive layer is 20 microns, the first adhesive layer comprises an anti-adsorption additive and glue, the addition amount of the anti-adsorption additive is 0.5% of the mass of the glue, the anti-adsorption additive is alumina powder, and the glue is polyurethane; the peeling force of the first glue layer is 1gf/25 mm; the base material layer is made of PET (polyethylene terephthalate), the thickness of the base material layer is 25 micrometers, the transmittance of the base material layer is 90%, and the haze of the base material layer is 1.5%; the thickness of the second adhesive layer is 20 microns, the second adhesive layer comprises an anti-adsorption additive and glue, the addition amount of the anti-adsorption additive is 0.5% of the mass of the glue, the anti-adsorption additive is alumina powder, and the glue is polyurethane; the peeling force of the second glue layer is 500gf/25 mm; the release agent layer is a silicon-containing release agent layer, the thickness is 100nm, and the release force is 1 g; the second film layer is a PET original film layer, the thickness of the second film layer is 25 mu m, the color of the second film layer is blue, the transmittance of the second film layer is 85 percent, and the haze of the second film layer is 3 percent.
The double faced adhesive tape described in this embodiment is subjected to an antistatic property test, and the film tearing voltage is 0.85 KV; the first adhesive layer had a peel force of 1gf/25mm, the second adhesive layer had a peel force of 480gf/25mm, and the light transmittance was 88%.
Example 5
The embodiment provides a double-sided adhesive tape, which sequentially comprises a first film layer, a first adhesive layer, a substrate layer, a second adhesive layer, a release agent layer and a second film layer from top to bottom; the peeling force of the first adhesive layer is lower than that of the second adhesive layer; wherein the first film layer is a PET original film layer, the thickness of the first film layer is 100 mu m, the first film layer is colorless and transparent, the transmittance of the first film layer is 88 percent, and the haze of the first film layer is 3 percent; the thickness of the first adhesive layer is 200 microns, the first adhesive layer comprises an anti-adsorption additive and glue, the addition amount of the anti-adsorption additive is 5% of the mass of the glue, the anti-adsorption additive is aluminum oxide powder, and the glue is organic silicon rubber; the peeling force of the first glue layer is 30gf/25 mm; the base material layer is made of PET material, the thickness is 125 μm, the transmittance is 99%, and the haze is 0.1%; the second adhesive layer is 200 microns thick and comprises an anti-adsorption additive and glue, the addition amount of the anti-adsorption additive is 5% of the mass of the glue, the anti-adsorption additive is aluminum oxide powder, and the glue is organic silicon rubber; the peeling force of the second glue layer is 2000gf/25 mm; the release agent layer is a non-silicon release agent layer, the thickness is 600nm, and the release force is 50 g; the second film layer is a PET original film layer, the thickness of the second film layer is 100 mu m, the color of the second film layer is colorless and transparent, the transmittance of the second film layer is 88 percent, and the haze of the second film layer is 3 percent.
The double faced adhesive tape described in the embodiment is subjected to an antistatic performance test, and the film tearing voltage is 0.01 KV; the first adhesive layer had a peel force of 33gf/25mm, the second adhesive layer had a peel force of 2040gf/25mm, and the light transmittance was 92%.
Comparative example 1
The difference from example 1 is that the second adhesive layer was a second adhesive layer having a peel force of 200gf/25mm, and the rest of the composition and application were the same as example 1.
The double faced adhesive tape of the comparative example is subjected to an antistatic performance test, and the film tearing voltage is 0.01 KV; as can be seen from the comparison between example 1 and comparative example 1, when the peel force of the second adhesive layer is too low, the adhesive property is poor, which affects the adhesion between the adhesive and the tempered glass, the peel force of the first adhesive layer is 33gf/25mm, the peel force of the second adhesive layer is 180gf/25mm, and the light transmittance is 91%.
Comparative example 2
The difference from example 1 is only that the thickness of the second adhesive layer is 10 μm, and the rest of the composition and the preparation method are the same as example 1.
The double faced adhesive tape of the comparative example is subjected to an antistatic performance test, and the film tearing voltage is 0.01 KV; as can be seen from the comparison between example 1 and comparative example 2, when the thickness of the second adhesive layer is too low, the peeling force of the second adhesive layer is affected, so that the adhesive property of the second adhesive layer is poor, and the adhesion between the adhesive and the tempered glass is affected.
Comparative example 3
The difference from the embodiment 1 is only that the acrylic adhesive layer with the same thickness is used to replace the first adhesive layer and the second adhesive layer in the embodiment 1, and the rest of the composition and the application are the same as the embodiment 1.
The double faced adhesive tape of the comparative example is subjected to an antistatic performance test, and the film tearing voltage is 2.51 KV; as can be seen from comparison between example 1 and comparative example 3, when the acrylic adhesive is used instead of the first adhesive layer and the second adhesive layer in the present invention, the peeling force of the first adhesive layer is 6gf/25mm, the peeling force of the second adhesive layer is 1030gf/25mm, and the light transmittance is 91%, the peeling voltage of the double-sided adhesive is greatly increased, thereby affecting the antistatic performance test of the double-sided adhesive.
The applicant states that the above description is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present invention are within the protection scope and the disclosure scope of the present invention.
Claims (9)
1. The double-sided adhesive is characterized by comprising a first film layer (1), a first adhesive layer (2), a base material layer (3), a second adhesive layer (4), a release agent layer (5) and a second film layer (6) which are combined together from top to bottom; the thickness of the second glue layer (4) is 20-200 μm; the second adhesive layer (4) has a peel force of 500-2000gf/25 mm.
2. Double-sided adhesive tape according to claim 1, characterized in that the first film layer (1) is a PET raw film layer.
3. Double-sided adhesive tape according to claim 1, characterized in that the thickness of the first film layer (1) is 25-100 μm.
4. Double-sided adhesive tape according to claim 1, characterized in that the thickness of the first adhesive layer (2) is 20-200 μm.
5. Double sided tape according to claim 1, characterized in that the first glue layer (2) is a first glue layer having a peel force of 1-30gf/25 mm.
6. Double sided tape according to claim 1, characterized in that the substrate layer (3) is a PET substrate layer.
7. Double-sided tape according to claim 1, characterized in that the thickness of the substrate layer (3) is 25-125 μm.
8. The double-sided tape as claimed in claim 1, wherein the thickness of the release agent layer (5) is 100nm and 600 nm.
9. Double-sided adhesive tape according to claim 1, characterized in that said second film layer (6) is a PET raw film layer; the thickness of the second film layer (6) is 25-100 mu m.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921315627.0U CN211546395U (en) | 2019-08-14 | 2019-08-14 | Double-sided adhesive tape |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921315627.0U CN211546395U (en) | 2019-08-14 | 2019-08-14 | Double-sided adhesive tape |
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| CN211546395U true CN211546395U (en) | 2020-09-22 |
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