WO2022139766A1 - A board structure that can be used instead of chipboard and mdf - Google Patents
A board structure that can be used instead of chipboard and mdf Download PDFInfo
- Publication number
- WO2022139766A1 WO2022139766A1 PCT/TR2021/051482 TR2021051482W WO2022139766A1 WO 2022139766 A1 WO2022139766 A1 WO 2022139766A1 TR 2021051482 W TR2021051482 W TR 2021051482W WO 2022139766 A1 WO2022139766 A1 WO 2022139766A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- board structure
- plastic layer
- structure according
- plastic
- styrene
- Prior art date
Links
- 239000011093 chipboard Substances 0.000 title claims abstract description 8
- 239000004033 plastic Substances 0.000 claims abstract description 27
- 229920003023 plastic Polymers 0.000 claims abstract description 27
- 239000002655 kraft paper Substances 0.000 claims abstract description 13
- 239000000123 paper Substances 0.000 claims abstract description 12
- 230000010354 integration Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 16
- -1 polyethylene Polymers 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 6
- BJRMDQLATQGMCQ-UHFFFAOYSA-N C=C.C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 Chemical compound C=C.C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 BJRMDQLATQGMCQ-UHFFFAOYSA-N 0.000 claims description 4
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 claims description 4
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 claims description 4
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 claims description 4
- 229910021532 Calcite Inorganic materials 0.000 claims description 2
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 2
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 18
- 238000004519 manufacturing process Methods 0.000 description 12
- 229920000877 Melamine resin Polymers 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 7
- 238000003825 pressing Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002023 wood Substances 0.000 description 3
- 239000004826 Synthetic adhesive Substances 0.000 description 2
- 229920001807 Urea-formaldehyde Polymers 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical compound O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 description 2
- HANVTCGOAROXMV-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine;urea Chemical compound O=C.NC(N)=O.NC1=NC(N)=NC(N)=N1 HANVTCGOAROXMV-UHFFFAOYSA-N 0.000 description 2
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 229920003180 amino resin Polymers 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005183 environmental health Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000011094 fiberboard Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N7/00—After-treatment, e.g. reducing swelling or shrinkage, surfacing; Protecting the edges of boards against access of humidity
- B27N7/005—Coating boards, e.g. with a finishing or decorating layer
Definitions
- the present invention relates to a board structure that is a substitute product for chipboard and MDF and can be used in all fields where they are used, especially in furniture.
- the present invention relates to a board structure that consists of a laminate layer consisting of a plastic layer and the integration of at least one Kraft paper and a melamine-impregnated decor paper.
- the formaldehyde emission can be dangerous and harmful, to process, workers, and environmental health. Cutting trees is required for production. If there is no tree cutting, production will not be possible.
- a method for reducing the formaldehyde content and formaldehyde emission in particleboard is disclosed in European Patent application numbered EP1419038B1. It is a method to reduce the formaldehyde content and emission in the particle board according to the invention, wherein the particleboard manufacturing process is carried out in the known standard way, by known procedure, by applying the known amino resin glue, by adding known hardening agents and/or possible additional formaldehyde binding agents, by flat pressing or by continuous pressing and cooling.
- the distinguishing feature is to expose this particle board after pressing, before cooling, to a short rest period between a few hours and several tens of hours, preferably 8-16 hours, at 70-1100 depending on the expected reduction rate of formaldehyde content and emission and the applied manufacturing process parameters.
- Turkish Patent application numbered TR2020/09888 relates to high performance and decorative composite products by coating papers impregnated with various resins on wood-based board products and the manufacturing method of these products.
- This invention is a new production methodology that is developed for the patterned or solid color resin-impregnated laminated sheet-laminate coating of the surfaces of wood-based board products (MDF, LDF, HDF, Particleboard-YL, OSB, Plywood, LVL, Solid Panel) and the final product.
- MDF, LDF, HDF, Particleboard-YL, OSB, Plywood, LVL, Solid Panel wood-based board products
- the current chip and MDF board production is not suitable for sustainable production for the environment and human health. It can lead to deterioration of the ecological balance and air pollution. It is an inappropriate process in terms of efficient use of resources since the measures taken to prevent this require the use of resources.
- the present invention is related to a board structure which fulfills the abovementioned requirements, eliminates all disadvantages and brings some additional advantages.
- the main aim of the invention is to develop a product with higher sustainability for the environment and human health than chipboard and particle board and more resistant to deformation when exposed to water.
- One aim of the invention is to realize a product that eliminates the need to use synthetic adhesives and glues.
- Another aim of the invention is to prevent the problems of blistering and swelling of the upper surface areas caused by the products being exposed to water.
- the inventive board structure consists of a laminate layer consisting of a plastic layer and the integration of at least one kraft paper and a melamine-impregnated decorative paper.
- Figure 1 is a schematic view of the inventive board structure.
- the invention is a board (plate) construction used instead of Particleboard and MDF.
- the inventive board structure comprises a laminate layer consisting of a plastic layer (10) and the integration of at least one Kraft paper (20) and a melamine-impregnated decorative paper (30).
- the plastic layer (10) consists of polyethylene, acrylonitrile butadiene styrene, styrene butadiene styrene, styrene ethylene butadiene styrene, polyamide and/or polypropylene raw materials according to a preferred embodiment of the invention.
- the plastic layer (10) additionally contains additives of maleic anhydride, talc, calcite, glass fiber, basalt and/or glass balls according to a preferred embodiment of the invention.
- the plastic layer (10) consists of a polyethylene raw material containing at least 0.1% by weight maleic anhydride additive.
- the polyethylene plastic layer (10) may contain a different plastic raw material additive up to 30% by weight.
- Polyethylene plastic layer (10) preferably may contain styrene butadiene styrene and/or styrene ethylene butadiene styrene raw material between 1 -10% by weight.
- plastic layer (10) contains maleic anhydride is for better adhesion of the parts (20 or 30) that become in contact with the plastic.
- Melamine-impregnated decorative paper (30) has a structure providing visuality and has been made resistant to heat and scratches due to melamine impregnation.
- Impregnation is the process of impregnating the wood with various chemical substances so as to prevent it from rotting by protecting it from harmful fungi and insects.
- Kraft paper (20) is positioned between the plastic part (10) and the melamine-coated decorative paper (30) so as to obtain higher levels of resistance against burning.
- the inventive polymer board structure production method comprises the following process steps: i. forming the material mixture for the plastic layer (10) containing maleic anhydride additive, ii. feeding the formed plastic material mixture to the injection machine, iii. placing the board in the injection mold so as to make injection onto the kraft paper
- HPL laminate is produced by pressing impregnated melamine coated decor paper (30) and kraft paper (20) in special presses under high temperature and pressure. HPL laminates show high abrasion and scratch resistance, and gain an antibacterial and hygienic surface feature with its non-porous surface structure with this technology.
- CPL laminate is produced by pressing melamine coated decor paper (30) and Kraft paper (20) impregnated under different conditions with rollers under high pressure and temperature. Apart from similar properties with HPL laminate, there are natural surface options.
- the melamine impregnated paper will be located on the visible upper part of the board. It can be selected in the desired pattern and color. The melamine impregnated surface ensures that the board is resistant to scratching, burning and staining.
Abstract
The present invention relates to a board structure that consists of a laminate layer consisting of a plastic layer (10) and the integration of at least one Kraft paper (20) and a melamine-impregnated decorative paper (30), can be used instead of chipboard and MDF.
Description
A BOARD STRUCTURE THAT CAN BE USED INSTEAD OF CHIPBOARD AND MDF
Field of the Invention
The present invention relates to a board structure that is a substitute product for chipboard and MDF and can be used in all fields where they are used, especially in furniture.
In particular, the present invention relates to a board structure that consists of a laminate layer consisting of a plastic layer and the integration of at least one Kraft paper and a melamine-impregnated decor paper.
State of the Art
The current process steps of making particleboard (chipboard) and MDF (medium-density fiberboard) are explained below. Trees selected according to the desired characteristics are stored and dried in two classifications according to their special breaker chip sizes. Special synthetic adhesive and hardening chemicals are used to bond the sawdust, which is divided into two classes, to each other. The chemically added mixture is dried. After the two pressing stages, the cooling process is applied. The edges are sanded and made ready for use. There is significant energy consumption since there are many process steps with energy consumption in this production process. However, the special adhesive and hardening chemicals used are given below;
Melamine-formaldehyde (MF)
Melamine-urea formaldehyde (MUF) Urea-formaldehyde (UF) Phenol formaldehyde (PF)
The formaldehyde emission can be dangerous and harmful, to process, workers, and environmental health. Cutting trees is required for production. If there is no tree cutting, production will not be possible.
The following applications are encountered in the literature regarding the subject matter:
A method for reducing the formaldehyde content and formaldehyde emission in particleboard is disclosed in European Patent application numbered EP1419038B1. It is a method to reduce the formaldehyde content and emission in the particle board according to the invention, wherein the particleboard manufacturing process is carried out in the known standard way, by known procedure, by applying the known amino resin glue, by adding known hardening agents and/or possible additional formaldehyde binding agents, by flat pressing or by continuous pressing and cooling. The distinguishing feature is to expose this particle board after pressing, before cooling, to a short rest period between a few hours and several tens of hours, preferably 8-16 hours, at 70-1100 depending on the expected reduction rate of formaldehyde content and emission and the applied manufacturing process parameters.
Turkish Patent application numbered TR2020/09888 relates to high performance and decorative composite products by coating papers impregnated with various resins on wood-based board products and the manufacturing method of these products. This invention is a new production methodology that is developed for the patterned or solid color resin-impregnated laminated sheet-laminate coating of the surfaces of wood-based board products (MDF, LDF, HDF, Particleboard-YL, OSB, Plywood, LVL, Solid Panel) and the final product. The process performed in two processes in the state of the art is completed in a single process with this invention.
In short, the current chip and MDF board production is not suitable for sustainable production for the environment and human health. It can lead to deterioration of the ecological balance and air pollution. It is an inappropriate process in terms of efficient use of resources since the measures taken to prevent this require the use of resources.
As a result, due to the abovementioned disadvantages and the insufficiency of the current solutions regarding the subject matter, a development is required to be made in the relevant technical field.
Brief Description of the Invention
The present invention is related to a board structure which fulfills the abovementioned requirements, eliminates all disadvantages and brings some additional advantages.
The main aim of the invention is to develop a product with higher sustainability for the environment and human health than chipboard and particle board and more resistant to deformation when exposed to water.
One aim of the invention is to realize a product that eliminates the need to use synthetic adhesives and glues.
Another aim of the invention is to prevent the problems of blistering and swelling of the upper surface areas caused by the products being exposed to water.
In order to fulfill the above-mentioned aims, the inventive board structure consists of a laminate layer consisting of a plastic layer and the integration of at least one kraft paper and a melamine-impregnated decorative paper.
The structural and characteristic features of the present invention will be understood clearly by the following drawings and the detailed description made with reference to these drawings and therefore the evaluation shall be made by taking these figures and the detailed description into consideration.
Figures Clarifying the Invention
Figure 1, is a schematic view of the inventive board structure.
The figures are not required to be scaled and the details which are not necessary for understanding the present invention may be neglected. Moreover, the elements that are at least substantially identical or have at least substantially identical functions are shown by the same number.
Description of the References
10. Plastic layer
20. Kraft paper
30. Melamine impregnated decorative paper
Detailed Description of the Invention
In this detailed description, the inventive structure is described only for clarifying the subject matter in a manner such that no limiting effect is created.
The invention is a board (plate) construction used instead of Particleboard and MDF.
The inventive board structure comprises a laminate layer consisting of a plastic layer (10) and the integration of at least one Kraft paper (20) and a melamine-impregnated decorative paper (30).
The plastic layer (10) consists of polyethylene, acrylonitrile butadiene styrene, styrene butadiene styrene, styrene ethylene butadiene styrene, polyamide and/or polypropylene raw materials according to a preferred embodiment of the invention.
The plastic layer (10) additionally contains additives of maleic anhydride, talc, calcite, glass fiber, basalt and/or glass balls according to a preferred embodiment of the invention.
According to a preferred embodiment of the invention, the plastic layer (10) consists of a polyethylene raw material containing at least 0.1% by weight maleic anhydride additive. The polyethylene plastic layer (10) may contain a different plastic raw material additive up to 30% by weight. Polyethylene plastic layer (10) preferably may contain styrene butadiene styrene and/or styrene ethylene butadiene styrene raw material between 1 -10% by weight.
The reason that the plastic layer (10) contains maleic anhydride is for better adhesion of the parts (20 or 30) that become in contact with the plastic.
Melamine-impregnated decorative paper (30) has a structure providing visuality and has been made resistant to heat and scratches due to melamine impregnation.
Impregnation is the process of impregnating the wood with various chemical substances so as to prevent it from rotting by protecting it from harmful fungi and insects.
Kraft paper (20) is positioned between the plastic part (10) and the melamine-coated decorative paper (30) so as to obtain higher levels of resistance against burning.
The inventive polymer board structure production method comprises the following process steps: i. forming the material mixture for the plastic layer (10) containing maleic anhydride additive, ii. feeding the formed plastic material mixture to the injection machine, iii. placing the board in the injection mold so as to make injection onto the kraft paper
(20) surface in the laminate layer, iv. closing the injection mold and injecting the molten plastic mixture onto the surface of the Kraft paper (20) in the laminate layer, v. removing formed board structure from the mold by opening the mold.
There are two types of laminate for use. These are HPL and CPL laminate types. HPL laminate is produced by pressing impregnated melamine coated decor paper (30) and kraft paper (20) in special presses under high temperature and pressure. HPL laminates show high abrasion and scratch resistance, and gain an antibacterial and hygienic surface feature with its non-porous surface structure with this technology.
CPL laminate; is produced by pressing melamine coated decor paper (30) and Kraft paper (20) impregnated under different conditions with rollers under high pressure and temperature. Apart from similar properties with HPL laminate, there are natural surface options. The melamine impregnated paper will be located on the visible upper part of the board. It can be selected in the desired pattern and color. The melamine impregnated surface ensures that the board is resistant to scratching, burning and staining.
In addition to forming structures that can be used instead of particle board (chipboard) and MDF with the inventive product, the following advantages are also provided;
• shortens the production time in seconds,
• reduces energy consumption,
• provides cost advantage as it eliminates many processes,
• reduces the machine park area required for production.
Claims
CLAIMS A board structure that can be used instead of chipboard and MDF, characterized in that; the board structure comprises a laminate layer consisting of a plastic layer (10) and the integration of at least one Kraft paper (20) and a melamine-impregnated decorative paper (30). A board structure according to claim 1 , characterized in that; the plastic layer (10) consists of polyethylene, acrylonitrile butadiene styrene, styrene butadiene styrene, styrene ethylene butadiene styrene, polyamide and/or polypropylene raw materials. A board structure according to claim 1 , characterized in that; the plastic layer (10) additionally contains additives of maleic anhydride, talc, calcite, glass fiber, and basalt and/or glass balls. A board structure according to claim 1 , characterized in that; the plastic layer (10) consists of a polyethylene raw material containing at least 0.1% by weight maleic anhydride additive. A board structure according to claim 4, characterized in that; the polyethylene plastic layer (10) may contain a different plastic raw material additive up to 30% by weight. A board structure according to claim 5, characterized in that; polyethylene plastic layer (10) preferably may contain styrene butadiene styrene and/or styrene ethylene butadiene styrene raw material between 1 -10% by weight. A board structure according to claim 1 , characterized in, comprising the following process steps; i. forming the material mixture for the plastic layer (10) containing maleic anhydride additive, ii. feeding the formed plastic material mixture to the injection machine, iii. placing the board in the injection mold so as to make injection onto the Kraft paper
(20) surface in the laminate layer, iv. closing the injection mold and injecting the molten plastic mixture onto the surface of the Kraft paper (20) in the laminate layer, v. removing formed board structure from the mold by opening the mold.
6
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR2020/21613 | 2020-12-24 | ||
| TR2020/21613A TR202021613A2 (en) | 2020-12-24 | 2020-12-24 | MAKING A SHEET THAT CAN BE USED INSTEAD OF CHIPBOARD AND MDF |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2022139766A1 true WO2022139766A1 (en) | 2022-06-30 |
Family
ID=75576379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/TR2021/051482 WO2022139766A1 (en) | 2020-12-24 | 2021-12-24 | A board structure that can be used instead of chipboard and mdf |
Country Status (2)
| Country | Link |
|---|---|
| TR (1) | TR202021613A2 (en) |
| WO (1) | WO2022139766A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0993934A2 (en) * | 1998-10-14 | 2000-04-19 | Premark RWP Holdings, Inc. | Methods for making a contoured solid surface laminate |
| WO2015002050A1 (en) * | 2013-07-01 | 2015-01-08 | 住友ベークライト株式会社 | Decorative board and decorative board set |
| TR201904794A2 (en) * | 2019-03-29 | 2019-05-21 | Farel Plastik Elektrik Ve Elektronik Imalat Sanayi Anonim Sirketi | THE PRODUCTION METHOD OF THE WHITE GOODS TOP TABLE AND THE TOP TABLE |
-
2020
- 2020-12-24 TR TR2020/21613A patent/TR202021613A2/en unknown
-
2021
- 2021-12-24 WO PCT/TR2021/051482 patent/WO2022139766A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0993934A2 (en) * | 1998-10-14 | 2000-04-19 | Premark RWP Holdings, Inc. | Methods for making a contoured solid surface laminate |
| WO2015002050A1 (en) * | 2013-07-01 | 2015-01-08 | 住友ベークライト株式会社 | Decorative board and decorative board set |
| TR201904794A2 (en) * | 2019-03-29 | 2019-05-21 | Farel Plastik Elektrik Ve Elektronik Imalat Sanayi Anonim Sirketi | THE PRODUCTION METHOD OF THE WHITE GOODS TOP TABLE AND THE TOP TABLE |
Also Published As
| Publication number | Publication date |
|---|---|
| TR202021613A2 (en) | 2021-01-21 |
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