CN218214746U - Flame-retardant B1-grade crosslinked polyethylene insulated power cable for construction engineering - Google Patents
Flame-retardant B1-grade crosslinked polyethylene insulated power cable for construction engineering Download PDFInfo
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- CN218214746U CN218214746U CN202222717594.0U CN202222717594U CN218214746U CN 218214746 U CN218214746 U CN 218214746U CN 202222717594 U CN202222717594 U CN 202222717594U CN 218214746 U CN218214746 U CN 218214746U
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 53
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 238000010276 construction Methods 0.000 title claims abstract description 21
- 229920003020 cross-linked polyethylene Polymers 0.000 title claims abstract description 16
- 239000004703 cross-linked polyethylene Substances 0.000 title claims abstract description 16
- 230000009970 fire resistant effect Effects 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 21
- 239000001301 oxygen Substances 0.000 claims abstract description 21
- 239000011248 coating agent Substances 0.000 claims abstract description 20
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 238000011049 filling Methods 0.000 claims abstract description 15
- 230000002265 prevention Effects 0.000 claims abstract description 15
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 238000009413 insulation Methods 0.000 claims abstract description 10
- 238000005253 cladding Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 60
- 239000000463 material Substances 0.000 claims description 22
- 239000010445 mica Substances 0.000 claims description 13
- 229910052618 mica group Inorganic materials 0.000 claims description 13
- 239000000779 smoke Substances 0.000 claims description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229920000098 polyolefin Polymers 0.000 claims description 6
- 229910052736 halogen Inorganic materials 0.000 claims description 5
- 150000002367 halogens Chemical class 0.000 claims description 5
- 239000011241 protective layer Substances 0.000 claims description 4
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 3
- 239000008397 galvanized steel Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000000137 annealing Methods 0.000 claims description 2
- 230000017105 transposition Effects 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 9
- 230000004888 barrier function Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000002955 isolation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000009863 impact test Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000009434 installation 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
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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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
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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- Insulated Conductors (AREA)
Abstract
The utility model discloses a construction engineering is with fire-retardant B1 level crosslinked polyethylene insulation power cable, including the cable core of constituteing by many fire-resistant sinle silks, every fire-resistant sinle silk by conductive core with around the flame retardant coating on conductive core, and crowded package is constituteed in the insulating layer on the flame retardant coating, have insulating group water layer around the package outside the cable core, and it has the fire prevention filling layer still to fill between many fire-resistant sinle silks of cladding in insulating group water layer, from interior to exterior being equipped with in proper order at insulating group water layer, separate the oxygen layer, metal armor and outer jacket. Adopt power cable, not only can satisfy and use in the special place that fire-resistant requirement is high, can also satisfy the power consumption demand among the construction engineering field, have simple structure, safe and reliable, the stable performance, its practicality is strong, has extensive application place.
Description
Technical Field
The utility model belongs to the technical field of the power cable technique and specifically relates to a construction engineering is with fire-retardant B1 level crosslinked polyethylene insulation power cable.
Background
With the continuous development and progress of society, the safety awareness of people is gradually improved. As for power cables, flame-retardant power cables are widely used, but the flame-retardant power cables alone cannot meet the needs of the modern society, and the main development trend of the existing power cables is to be more stable and safer. For the power cable used in construction engineering, because the power supply load of the power cable is large, the flame retardant B1 grade power cable is the best choice in terms of stability and safety of the power cable.
The flame-retardant B1-grade power cable is a novel power cable which is commonly used in recent years, but the existing partial flame-retardant B1-grade power cable can not meet the fire-resistant requirement in the test process of independently supplying fire for 90min at the fire-resistant temperature of 750 ℃. Meanwhile, because the existing partially flame-retardant B1-level power cable, the materials filled between the wire cores are mostly made of PP filling rope materials, because the PP filling rope materials do not have flame-retardant requirements, the cable is unstable in internal structure, when a fire disaster occurs, a large amount of heat can be released in the combustion process, and therefore drips appear on the power cable, on one hand, the combustion of the cable is easily accelerated, the power cable is rapidly reduced in power-on capacity, on the other hand, the drips easily cause the combustion of other inflammable substances, and because the drips appear in the combustion process, the fire disaster range can be further enlarged, and the power cable cannot meet the use requirements of special places with high fire-resistant requirements.
Through search, for example, a B1-level power cable is disclosed in a chinese patent (publication No. CN 209401350U, publication No. 20190917, publication No. CN216487357U, publication No. 20220510), and a B1-level flame retardant control cable is disclosed in a chinese patent. As is apparent from the disclosures of the above two patent documents, power cables having different structures are used to meet the requirements for use. In order to enhance the competitiveness of enterprises and improve the market share, the power cable is suitable for special places with high fire-resistant requirements, and therefore the power cable is different from the power cable disclosed in the prior art, is applied to the field of construction engineering, can meet the B1-level fire-resistant requirements, and can improve the safety performance and prolong the service life.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to the problem that exists in the background art, provide one kind and not only have superior radial and vertical water blocking performance, still have excellent fire-retardant fire-resistant, fire prevention and the power cable that resistant weather corrosion resisting property is good, be applied to the construction engineering field with it, can satisfy the fire-retardant requirement of B1 level, specifically speaking is a construction engineering is with fire-retardant B1 level crosslinked polyethylene insulated power cable.
For solving the technical problem, the utility model discloses the technical scheme who adopts does: the utility model provides a construction engineering is with fire-retardant B1 level crosslinked polyethylene insulation power cable, including the cable core, the cable core comprises many fire-resistant sinle silk, and every fire-resistant sinle silk by conductive core and around the flame retardant coating of covering on conductive core to and crowded package insulating layer on the flame retardant coating constitutes the cable core has insulating group water layer around the package outward, and the cladding in still pack between the intraductal many fire-resistant sinle silk of insulating group water layer has the fire prevention filling layer the insulating group water layer is equipped with fire barrier, oxygen barrier, metal armor and outer jacket outward from interior to exterior in proper order.
Further, a construction engineering is with fire-retardant B1 level crosslinked polyethylene insulation power cable, wherein the cable core comprises three fire-resistant sinle silks, and three fire-resistant sinle silks contact each other and constitute the regular triangle structure, wherein the conductive sinle silks adopt the first kind or the second kind of annealing soft copper transposition conductor of GB/T3956-2008 regulation to make, the flame retardant coating adopts double-deck coating mica tape to overlap around the package and forms, and coating mica tape around the package take the lid rate to be 15 ~ 25%, the insulating layer adopts the crowded package of crosslinked polyethylene material to form.
Further, a construction engineering is with fire-retardant B1 level cross-linked polyethylene insulation power cable, wherein the fire prevention filling layer adopts solid-state fire prevention mud crowded package between fire-resistant sinle silk, forms compact structure, insulating water blocking layer adopts non-conducting resistance water tape material to form around the package through overlapping, the flame retardant coating adopts no halogen-free low smoke high fire-retardant tape material to form around the package through overlapping, it adopts the oxygen index to be not less than 45 no halogen-free low smoke fire-retardant B1 level polyolefin to separate the crowded package of oxygen material and form to separate the oxygen layer, the metal armor adopts double-deck stainless steel band or galvanized steel band material to form around the package through the clearance spiral, the outer jacket adopts the crowded package of the zero halogen-free low smoke fire-retardant B1 level polyolefin sheath material that oxygen index is not less than 40 to form.
Adopt a construction engineering is with fire-retardant B1 level crosslinked polyethylene insulation power cable, because the cable core comprises many fire-resistant sinle silk to it has the fire prevention filling layer still to fill between many fire-resistant sinle silk, simultaneously the cable core is wrapped outward and is had the insulation group water layer is equipped with fire barrier, oxygen barrier, metal armor and outer jacket outward from interior to exterior in proper order, forms compact structure through the fire prevention filling layer that sets up, can improve its fire prevention flame retardant property to the insulation group water layer that utilizes to set up can strengthen its radial and vertical water blocking performance, and under the combined action of fire barrier, oxygen barrier, metal armor and outer jacket, can improve power cable's fire-retardant fire-resistant, fire prevention and weather resistance. Through tests, the flame retardant meets the corresponding standard requirements, and can meet the B1-level flame retardant requirements when applied to the field of construction engineering. Adopt power cable, not only can satisfy the special place that fire-resistant requirement is high and use, can also satisfy the power consumption demand among the construction engineering field, simple structure has, safe and reliable, the stable performance, its practicality is strong, has extensive application place.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
Shown in the figure: 1-fire-resistant wire core, 11-conductive wire core, 12-fire-resistant layer, 13-insulating layer, 2-fire-resistant filling layer, 3-insulating water-containing layer, 4-fire-insulating layer, 5-oxygen-insulating layer, 6-metal armor layer and 7-outer protective layer.
Detailed Description
As shown in figure 1, a construction engineering is with fire-retardant B1 level crosslinked polyethylene insulation power cable, including the cable core, the cable core comprises three fire-resistant sinle silk 1, three fire-resistant sinle silk 1 contact each other constitutes regular triangle structure, every fire-resistant sinle silk 1 by conductive core 11 with around package flame retardant coating 12 on conductive core 11 to and crowded package insulating layer 13 on flame retardant coating 12 constitutes the cable core has insulating group water layer 3 around the package outward, and at the cladding in still pack between many fire-resistant sinle silk 1 in insulating group water layer 3 and have fire prevention filling layer 2 insulating group water layer 3 is outer from interior to exterior to being equipped with fire barrier 4, oxygen barrier 5, metal armor 6 and outer jacket 7 in proper order.
In concrete manufacture process, adopt power cable, because fire-resistant sinle silk 1 by conductive core 11 with around package flame retardant coating 12 on conductive core 11 to and crowded package is formed on insulating layer 13 on flame retardant coating 12. The conductive wire core 11 is made of a first annealed soft copper stranded conductor or a second annealed soft copper stranded conductor specified in GB/T3956-2008, and the first annealed soft copper stranded conductor or the second annealed soft copper stranded conductor is convenient to process and manufacture, so that the power cable can be better ensured to have higher flexibility in the installation and laying process.
The fireproof layer 12 is formed by lapping two layers of coated mica tapes in an overlapping mode, the lapping and covering rate of the mica tapes is 15% -25%, the coated mica tapes are FP140G28 series products produced by Hubei safety electrical materials Co., ltd, and the high-performance mica tapes are formed by taking special mica paper as a base material, glass fiber cloth as a reinforcing material and a nano inorganic material as a coating, so that the performance is more stable, and the flexibility and the fireproof performance are better. The coated mica tape has the characteristics of no anti-sticking, no wire lifting, no line sticking, no drop of mica and the like. When the power cable is produced, the fire-resistant layer 12 selects reasonable width and wrapping angle according to the outer diameter of the conductive wire core 11, tension is adjusted, the wrapping layer is ensured to be flat and tight, and the phenomena of leakage, bulge and uneven covering are avoided, so that the fire-resistant insulating effect of the power cable can be ensured.
As the fire resistance of the existing fire-resistant cable can only meet the GB/T19216.21 standard, the fire temperature is required to be not lower than 750 ℃ for a single fire supply test for 90 min. The coating mica tape is adopted as the fire-resistant layer 12, the fire resistance of the coating mica tape is improved, the GB/T19216.31 standard can be met, the flame temperature is required to be not lower than 830 ℃ for fire supply, and the impact test requirement is applied.
The insulating layer 13 is formed by extruding a cross-linked polyethylene material, has good compactness by an extruding mode, has good radial waterproof performance and insulating performance, effectively prevents moisture from damaging the fire-resistant layer in the production and use processes, and enhances the insulating performance in the use process.
Fire prevention filling layer 2 adopts solid-state fire prevention mud to utilize double screw extrusion equipment crowded package between fire-resistant sinle silk 1, form compact structure through the filling mode, when the conflagration breaing out, crowded fire prevention filling layer 2 of package is when receiving outside high temperature, can form firm stable ceramic flame retardant coating the very first time, and absorb a large amount of heats, and not release the heat, thereby guarantee that whole power cable is under flame, do not because of separating 5 inside unstabilities in oxygen layer, and influence the experiment of drippage, thereby realize the performance index of no drippage thing/particle in the cable 1200s, when can effectively preventing the conflagration of taking place, the destruction that causes, guarantee crowded package filling layer inner structure is complete effective, thereby increase power cable's life and security performance.
The insulating water-blocking layer 3 is made of non-conductive water-blocking tape materials through an overlapping wrapping process, so that when moisture or water penetrates longitudinally, the non-conductive water-blocking tape can expand with water to effectively block water from flowing longitudinally, a good water-blocking effect is achieved, and toxic and harmful components are not released.
The fire-proof layer 4 adopts halogen-free low-smoke high-flame-retardant belt material, is made by overlapping wrapping technology, adopts halogen-free low-smoke high-flame-retardant belt material as the fire-proof layer 4, has high temperature resistance, prevents the inward expansion of flame, has good fireproof effect, and does not release toxic and harmful components.
The oxygen isolation layer 5 is formed by extruding and wrapping a halogen-free low-smoke flame-retardant B1-grade polyolefin oxygen isolation material with the oxygen index not less than 45, has good oxygen isolation and heat absorption effects, and also has low viscosity, no halogen, special wear resistance and excellent waterproof performance.
The metal armor layer 6 is made of two layers of stainless steel strips or galvanized steel strips and is prepared through a gap spiral wrapping process, so that the metal armor layer can be tightly and stably fixed between the oxygen isolation layer 5 and the outer protective layer 7, and the metal armor layer has good compression resistance.
The outer protective layer 7 is formed by extruding and wrapping a halogen-free low-smoke flame-retardant B1-level polyolefin sheath material with the oxygen index not less than 40, has a good flame-retardant and heat-absorbing effect, and has the characteristics of low viscosity, no halogen, special wear resistance, excellent waterproofness, weather-proof aging resistance and the like, so that the whole power cable reaches the B1-level combustion standard in the GB 31247-2014 standard, and the service life of the product is greatly prolonged.
Adopt power cable, according to GB/T18380.33-2007A class bundling burning and GB 31247-2014 standard in B1 level burning test to according to GB/T19216.31 standard requirement, at the confession fire that flame temperature is not less than 830 ℃ and apply impact test, its test result all meets the requirements. Therefore, adopt power cable, not only have superior radial vertical water-blocking performance, still have excellent fire-retardant fire-resistant fire prevention, resistant corrosion-resistant advantage of waiting, be applied to it in the construction engineering field, can satisfy B1 level fire-retardant requirement, greatly satisfy the power consumption demand in the different construction engineering fields of present stage, be applicable to and lay the use under the abominable condition of multiple environment.
The utility model discloses a protection scope is not only limited to the disclosed technical scheme of embodiment, above only do the utility model discloses a preferred embodiment, and not the restriction the utility model discloses, all basis the utility model discloses an any slight modification, equivalent replacement and improvement that technical scheme did all should contain within the utility model discloses within technical scheme's the protection scope.
Claims (3)
1. The utility model provides a construction engineering is with fire-retardant B1 level crosslinked polyethylene insulation power cable which characterized in that: including the cable core, the cable core comprises many fire-resistant sinle silk (1), and every fire-resistant sinle silk (1) by conductive core (11) and around flame retardant coating (12) on conductive core (11) to and insulating layer (13) of crowded package on flame retardant coating (12) constitute the cable core is outer around having insulating water blocking layer (3), and the cladding in still pack between many fire-resistant sinle silk (1) in insulating water blocking layer (3) have fire prevention filling layer (2) insulating water blocking layer (3) are outer from interior to exterior and are equipped with in proper order and separate fire bed (4), separate oxygen layer (5), metal armor (6) and outer jacket (7).
2. The flame-retardant B1-grade crosslinked polyethylene insulated power cable for construction engineering according to claim 1, characterized in that: the cable core comprises three fire-resistant sinle silk (1), and three fire-resistant sinle silk (1) contact each other constitutes regular triangle structure, wherein electrically conductive sinle silk (11) adopt the first kind or the second kind of annealing soft copper transposition conductor of GB/T3956-2008 regulation to make, fire resistive layer (12) adopt double-deck coating mica tape to overlap around the package and form, and coating mica tape around the package take the lid rate to be 15 ~ 25%, insulating layer (13) adopt the crowded package of crosslinked polyethylene material to form.
3. The flame-retardant B1-grade crosslinked polyethylene insulated power cable for construction engineering according to claim 1, characterized in that: the fireproof filling layer (2) is wrapped between the fireproof wire cores (1) in a squeezing mode through solid fireproof mud to form a compact structure, the insulating waterproof layer (3) is formed by wrapping non-conductive water tape materials in a lapping mode, the fire isolating layer (4) is formed by wrapping non-halogen low-smoke high-flame-retardant tape materials in a lapping mode in a overlapping mode, the oxygen isolating layer (5) is formed by wrapping non-halogen low-smoke flame-retardant B1-level polyolefin oxygen isolating materials with oxygen indexes not lower than 45 in a squeezing mode, the metal armor layer (6) is formed by wrapping double-layer stainless steel belts or galvanized steel belt materials in a gap spiral mode in a wrapping mode, and the outer protective layer (7) is formed by wrapping non-halogen low-smoke flame-retardant B1-level polyolefin sheath materials with oxygen indexes not lower than 40 in a squeezing mode.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222717594.0U CN218214746U (en) | 2022-10-17 | 2022-10-17 | Flame-retardant B1-grade crosslinked polyethylene insulated power cable for construction engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222717594.0U CN218214746U (en) | 2022-10-17 | 2022-10-17 | Flame-retardant B1-grade crosslinked polyethylene insulated power cable for construction engineering |
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| Publication Number | Publication Date |
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| CN218214746U true CN218214746U (en) | 2023-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222717594.0U Active CN218214746U (en) | 2022-10-17 | 2022-10-17 | Flame-retardant B1-grade crosslinked polyethylene insulated power cable for construction engineering |
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| Country | Link |
|---|---|
| CN (1) | CN218214746U (en) |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A flame-retardant B1 grade cross-linked polyethylene insulated power cable for construction projects Granted publication date: 20230103 Pledgee: The Bank of Guiyang branch of Limited by Share Ltd. Pingba Pledgor: Gooda wire and cable (Group) Co.,Ltd. Registration number: Y2024980029506 |