CN107671979A - A kind of production method of light particleboard - Google Patents

A kind of production method of light particleboard Download PDF

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Publication number
CN107671979A
CN107671979A CN201710827096.2A CN201710827096A CN107671979A CN 107671979 A CN107671979 A CN 107671979A CN 201710827096 A CN201710827096 A CN 201710827096A CN 107671979 A CN107671979 A CN 107671979A
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CN
China
Prior art keywords
wood shavings
sandwich layer
quality
production method
light
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710827096.2A
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Chinese (zh)
Inventor
王俊伟
陈秀兰
王丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DARE WOOD BASED PANEL GROUP Co Ltd
Original Assignee
DARE WOOD BASED PANEL GROUP Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DARE WOOD BASED PANEL GROUP Co Ltd filed Critical DARE WOOD BASED PANEL GROUP Co Ltd
Priority to CN201710827096.2A priority Critical patent/CN107671979A/en
Publication of CN107671979A publication Critical patent/CN107671979A/en
Pending legal-status Critical Current

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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
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/02—Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood shavings or the like
    • 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
    • B27N1/00—Pretreatment of moulding material
    • B27N1/02—Mixing the material with binding agent
    • B27N1/0209—Methods, e.g. characterised by the composition of the agent
    • 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
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/002—Manufacture of substantially flat articles, e.g. boards, from particles or fibres characterised by the type of binder
    • 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
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/10—Moulding of mats
    • B27N3/14—Distributing or orienting the particles or fibres
    • B27N3/146—Controlling mat weight distribution
    • 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
    • B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
    • B27N3/08—Moulding or pressing
    • B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

The invention belongs to man-made board technology field, is related to particieboard production, more particularly to a kind of production method of light particleboard, including：Wood shavings preparation, drying, glue mixing, mat formation, precompressed and hot pressing, wherein top layer is Wood in Common Use fines wood shavings, sandwich layer wood shavings are maize straw wood shavings and Chinese pennisetum stalk wood shavings, and heat pressing process is the slab that will be pressed through in advance 3~6min of hot pressing under 170~190 DEG C of temperature, pressure 2.5MPa~3.5MPa.The present invention produces lightweight shaving board using light material as raw material after improving production technology.On the basis of existing Particleboard production Technology, sandwich layer wood shavings are changed to the relatively low maize straw wood shavings of density, heap density and Chinese pennisetum stalk wood shavings by common wood particle；Sandwich layer adds MDI resins, reduces muf resin usage amount and brings the Effects of Density of sheet material to reduce adhesive and lift sheet material overall physical properties.Density can be produced in 0.38~0.50g/cm3Between and the light particleboard that complies with the national standard requirements of its physical and chemical indexes.

Description

A kind of production method of light particleboard
Technical field
The invention belongs to man-made board technology field, is related to particieboard production, more particularly to a kind of production of light particleboard Method.
Background technology
Conventional artificial's plate is using timber or other non-wood plant fibres as raw material, through mechanical crushing or chemical process, separation Into after various unit materials, apply（Or do not apply）The sheet material that adhesive and other additive hot pressing form.It is because most The density of timber has been above 0.4g/cm3, along with most of adhesive density is above 1.0g/cm3, the plate of blended compacting Material density is difficult to be less than 0.6g/cm mostly3Numerical value.Nearly ten years, due to the rise of building decoration and furniture industry, than The small sheet material of weight has the more and more extensive market demand.The application scenario of many wood-based plates and not need sheet material to have higher strong Degree, the light weight of sheet material is required on the contrary.
Light particleboard is the product of conventional artificial's plate constantly improve in its evolution in Wood Science and Technology, Refer to density in 0.25~0.4/cm3Between, material is light and soft, and intensity is suitable, has certain water resistance and good dimensionally stable The particieboard of property.The density of current domestic particieboard is all in 0.65~0.80g/cm3Between, belong to the less kind of wood-based plate Midst density Class, applied to building, furniture, vehicle and shipbuilding.But the particieboard in this density range not only carries processing difficulties, and Dimensional stability is poor.
Due to fluffy inside light particleboard, therefore sheet material has good sound-proofing, heat insulating ability and machining property. It is also immature that the technology of light particleboard is manufactured with traditional handicraft at present, the present invention is that raw material improves production work using light material Skill produces lightweight shaving board.
The content of the invention
For above-mentioned the deficiencies in the prior art, the invention discloses a kind of production method of light particleboard.
A kind of production method of light particleboard, comprises the following steps：
A, prepared by wood shavings：Top layer is Wood in Common Use fines wood shavings, and sandwich layer wood shavings are maize straw wood shavings and Chinese pennisetum stalk wood shavings；
B, drying：By wood shavings dry materials to moisture content 1.5~2.5%；
C, glue mixing：Dried top layer wood shavings apply the muf resin of over dry wood shavings quality 8~10%, solids content 53~55% and 1%~1.5% emulsified wax, sandwich layer wood shavings apply 0~3%MUF resins of over dry sandwich layer wood shavings quality, solids content 62~65% With 2~5%MDI resins（It is commercially available）, 1~1.5% melt paraffin, 0.3% curing agent；
D, mat formation, precompressed：Material after applying glue is mated formation into the uniform slab of thickness and then precompressed by table-core-table；
E, hot pressing：By the slab pressed through in advance, 3~6min of hot pressing is produced under 170~190 DEG C of temperature, pressure 2.5MPa~3.5MPa To light particleboard, 180 DEG C of preferable temperature, pressure 3.0MPa, hot pressing time 6min.
In the more excellent disclosed example of the present invention, maize straw wood shavings described in step A and Chinese pennisetum stalk wood shavings are the jade after air-drying Rice stalk, Chinese pennisetum stalk cane through fragmentation, slicing, screening, wherein wood shavings grow 3~30mm, wide 0.5~3mm, thickness 0.5~ 1.5mm。
In the more excellent disclosed example of the present invention, maize straw wood shavings described in step A account for the 50~80% of sandwich layer wood shavings quality, wolf tail Careless stalk wood shavings account for the 20~50% of sandwich layer wood shavings quality.
In the more excellent disclosed example of the present invention, top layer wood shavings described in step C are timber fines wood shavings, and top layer wood shavings quality accounts for total plane Flower quality 20~30%, sandwich layer wood shavings quality account for total wood shavings quality 70~80%.
In the more excellent disclosed example of the present invention, muf resin described in step C is self-control；The muf resin is commercially available.
In the more excellent disclosed example of the present invention, sandwich layer wood shavings described in step C apply the MUF trees of over dry sandwich layer wood shavings quality 0~3% Fat（Self-control）With 2~5% MDI resins（It is commercially available）, use 0~3%MUF resins（Self-control, solids content 62~65%）Dipping plane Flower, 2%~5%MDI of addition resins are used to strengthen physical property.
In the more excellent disclosed example of the present invention, curing agent described in step C is 20% ammonium chloride solution.
Beneficial effect
The present invention produces lightweight shaving board using light material as raw material after improving production technology.Work is produced in existing particieboard On the basis of skill, sandwich layer wood shavings are changed to the relatively low maize straw wood shavings and Chinese pennisetum straw of density, heap density by common wood particle Stalk wood shavings；Sandwich layer adds MDI resins, reduces muf resin usage amount to reduce Effects of Density and the lifting that adhesive brings sheet material Sheet material overall physical properties.Density can be produced in 0.38~0.50g/cm3Between and its physical and chemical indexes meet national standard It is required that light particleboard.
Embodiment
With reference to embodiment, the present invention is described in detail, so that those skilled in the art more fully understand this hair It is bright, but the invention is not limited in following examples.
Embodiment 1
A kind of production method of light particleboard, comprises the following steps：
A, prepared by wood shavings：Top layer is Wood in Common Use particle wood shavings, and maize straw wood shavings, Chinese pennisetum stalk wood shavings are in sandwich layer wood shavings Maize straw, Chinese pennisetum stalk through fragmentation, slicing, be sieved into given size wood shavings, maize straw wood shavings account for sandwich layer wood shavings quality 80%, Chinese pennisetum stalk wood shavings account for sandwich layer wood shavings quality 20%；
B, drying：By dry materials to moisture content 2.0%；
C, glue mixing：Dried top layer wood shavings are applied to the muf resin of over dry wood shavings amount 8%（Solids content 53.5%）And 1% emulsification Paraffin, sandwich layer wood shavings apply over dry sandwich layer wood shavings amount 3%MUF resins（Solids content 63%）, 2.0%MDI resins, 1% melt paraffin With 0.3% curing agent（20% ammonium chloride solution）；
D, mat formation, precompressed：Top layer wood shavings quality accounts for total wood shavings quality 20%, and sandwich layer wood shavings quality accounts for total wood shavings quality 80%；Proportionately Plate density 0.50g/cm3Setting is mated formation weight, and mats formation into the uniform slab of thickness and then precompressed at room temperature by table-core-table；
E, hot pressing：By the slab pressed through in advance, hot pressing 3min obtains light particleboard under 170 DEG C of temperature, pressure 2.5MPa.
Finally obtained particieboard density is 0.49g/cm to the present embodiment3。
Embodiment 2
A kind of production method of light particleboard, comprises the following steps：
A, prepared by wood shavings：Top layer is Wood in Common Use particle wood shavings, and maize straw wood shavings, Chinese pennisetum stalk wood shavings are in sandwich layer wood shavings Maize straw, Chinese pennisetum stalk through fragmentation, slicing, be sieved into given size wood shavings, maize straw wood shavings account for sandwich layer wood shavings quality 70%, Chinese pennisetum stalk wood shavings account for sandwich layer wood shavings quality 30%；
B, drying：By dry materials to moisture content 2.0%；
C, glue mixing：Dried top layer wood shavings are applied to the muf resin of over dry wood shavings amount 9%（Solids content 53.5%）And 1% emulsification Paraffin, sandwich layer wood shavings apply over dry sandwich layer wood shavings amount 2%MUF resins（Solids content 63%）, 3.0%MDI resins, 1% melt paraffin With 0.3% curing agent（20% ammonium chloride solution）；
D, mat formation, precompressed：Top layer wood shavings quality accounts for total wood shavings quality 25%, and sandwich layer wood shavings quality accounts for total wood shavings quality 75%；Proportionately Plate density 0.45g/cm3Setting is mated formation weight, and mats formation into the uniform slab of thickness and then precompressed at room temperature by table-core-table；
E, hot pressing：By the slab pressed through in advance, hot pressing 6min obtains light particleboard under 180 DEG C of temperature, pressure 3.0MPa.
Finally obtained particieboard density is 0.43g/cm to the present embodiment3。
Embodiment 3
A kind of production method of light particleboard, comprises the following steps：
A, prepared by wood shavings：Top layer is Wood in Common Use particle wood shavings, and maize straw wood shavings, Chinese pennisetum stalk wood shavings are in sandwich layer wood shavings Maize straw, Chinese pennisetum stalk through fragmentation, slicing, be sieved into given size wood shavings, maize straw wood shavings account for sandwich layer wood shavings quality 50%, Chinese pennisetum stalk wood shavings account for sandwich layer wood shavings quality 50%；
B, drying：By dry materials to moisture content 2.0%；
C, glue mixing：Dried top layer wood shavings are applied to the muf resin of over dry wood shavings amount 10%（Solids content 53.5%）And 1% breast Fossil waxes, sandwich layer wood shavings apply over dry sandwich layer wood shavings amount 0%MUF resins（Solids content 63%）, 5%MDI resins, 1% melt paraffin With 0.3% curing agent（20% ammonium chloride solution）；
D, mat formation, precompressed：Top layer wood shavings quality accounts for total wood shavings quality 30%, and sandwich layer wood shavings quality accounts for total wood shavings quality 70%；Proportionately Plate density 0.40g/cm3Setting is mated formation weight, and mats formation into the uniform slab of thickness and then precompressed at room temperature by table-core-table；
E, hot pressing：By the slab pressed through in advance, hot pressing 6min obtains light particleboard under 190 DEG C of temperature, pressure 3.5MPa.
Finally obtained particieboard density is 0.41g/cm to the present embodiment3。
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair The equivalent structure or equivalent flow conversion that bright specification is made, or other related technical areas are directly or indirectly used in, Similarly it is included within the scope of the present invention.

Claims (7)

1. a kind of production method of light particleboard, it is characterised in that comprise the following steps：
A, prepared by wood shavings：Top layer is Wood in Common Use fines wood shavings, and sandwich layer wood shavings are maize straw wood shavings and Chinese pennisetum stalk wood shavings；
B, drying：By wood shavings dry materials to moisture content 1.5~2.5%；
C, glue mixing：Dried top layer wood shavings apply the muf resin of over dry wood shavings quality 8~10%, solids content 53~55% and 1%~1.5% emulsified wax, sandwich layer wood shavings apply 0~3%MUF resins of over dry sandwich layer wood shavings quality, solids content 62~65% With 2~5%MDI resins, 1~1.5% melt paraffin, 0.3% curing agent；
D, mat formation, precompressed：Material after applying glue is mated formation into the uniform slab of thickness and then precompressed by table-core-table；
E, hot pressing：By the slab pressed through in advance, 3~6min of hot pressing is produced under 170~190 DEG C of temperature, pressure 2.5MPa~3.5MPa To light particleboard.
2. the production method of light particleboard according to claim 1, it is characterised in that：Maize straw wood shavings described in step A With Chinese pennisetum stalk wood shavings it is the maize straw after air-drying, Chinese pennisetum stalk cane through fragmentation, slicing, screening, wherein wood shavings length 3 ~30mm, wide 0.5~3mm, 0.5~1.5mm of thickness.
3. the production method of light particleboard according to claim 1, it is characterised in that：Maize straw wood shavings described in step A The 50~80% of sandwich layer wood shavings quality are accounted for, Chinese pennisetum stalk wood shavings account for the 20~50% of sandwich layer wood shavings quality.
4. the production method of light particleboard according to claim 1, it is characterised in that：Top layer wood shavings described in step C are wood Material fines wood shavings, top layer wood shavings quality account for total wood shavings quality 20~30%, and sandwich layer wood shavings quality accounts for total wood shavings quality 70~80%.
5. the production method of light particleboard according to claim 1, it is characterised in that：Muf resin described in step C is certainly System, the muf resin are commercially available.
6. the production method of light particleboard according to claim 1, it is characterised in that：Curing agent described in step C is 20% chlorine Change ammonium salt solution.
7. the production method of light particleboard according to claim 1, it is characterised in that：180 DEG C of temperature described in step E, pressure Power 3.0MPa, hot pressing time 6min.
CN201710827096.2A 2017-09-14 2017-09-14 A kind of production method of light particleboard Pending CN107671979A (en)

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Application Number Priority Date Filing Date Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108393999A (en) * 2018-03-25 2018-08-14 南京林业大学 Tannin base adhesive particieboard and preparation method thereof
CN110091403A (en) * 2019-05-07 2019-08-06 中国林业科学研究院木材工业研究所 A kind of ultra-thin flake prepares the continuous flat technique of light particleboard
CN111113607A (en) * 2019-12-10 2020-05-08 华南农业大学 Shaving board and preparation method and application thereof
CN111993525A (en) * 2020-09-01 2020-11-27 广西壮族自治区林业科学研究院 Preparation method of light-weight shaving board
CN113172720A (en) * 2021-05-07 2021-07-27 辽宁尼尔科达环保材料有限公司 Sky blue anion wood particle board
CN113172721A (en) * 2021-05-07 2021-07-27 辽宁尼尔科达环保材料有限公司 Bamboo charcoal solid wood particle board
CN114872163A (en) * 2021-12-21 2022-08-09 山东菏泽茂盛木业有限公司 Production method of low-formaldehyde light shaving board

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CN101347946A (en) * 2008-08-29 2009-01-21 大亚科技股份有限公司 Shaving board producing method
CN103240787A (en) * 2013-05-23 2013-08-14 南京林业大学 Shaving board made of mudflat plants and manufacturing method thereof
CN103419264A (en) * 2012-05-18 2013-12-04 大亚木业（福建）有限公司 Production method of ultra-low-density high-performance particle board
CN103660003A (en) * 2013-12-31 2014-03-26 北京林业大学 Wheat straw/wood shaving composite artificial board manufacturing method
CN104999538A (en) * 2015-08-05 2015-10-28 常州市鼎日环保科技有限公司 Method for manufacturing particleboard with zero formaldehyde emission using cornstalk
CN105345913A (en) * 2015-09-25 2016-02-24 大亚人造板集团有限公司 High-water-resistance MUF resin for shaving board and production process and application thereof
CN105538471A (en) * 2015-12-05 2016-05-04 青岛大方智慧网络科技有限公司 Composite type shaving board
CN105965660A (en) * 2016-04-29 2016-09-28 鸿伟木业（仁化）有限公司 Production process of fire-retardant particleboard
CN106985257A (en) * 2016-12-14 2017-07-28 宁波中科朝露新材料有限公司 A kind of low formaldehyde particieboard and preparation method thereof

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Publication number Priority date Publication date Assignee Title
CN101347946A (en) * 2008-08-29 2009-01-21 大亚科技股份有限公司 Shaving board producing method
CN103419264A (en) * 2012-05-18 2013-12-04 大亚木业（福建）有限公司 Production method of ultra-low-density high-performance particle board
CN103240787A (en) * 2013-05-23 2013-08-14 南京林业大学 Shaving board made of mudflat plants and manufacturing method thereof
CN103660003A (en) * 2013-12-31 2014-03-26 北京林业大学 Wheat straw/wood shaving composite artificial board manufacturing method
CN104999538A (en) * 2015-08-05 2015-10-28 常州市鼎日环保科技有限公司 Method for manufacturing particleboard with zero formaldehyde emission using cornstalk
CN105345913A (en) * 2015-09-25 2016-02-24 大亚人造板集团有限公司 High-water-resistance MUF resin for shaving board and production process and application thereof
CN105538471A (en) * 2015-12-05 2016-05-04 青岛大方智慧网络科技有限公司 Composite type shaving board
CN105965660A (en) * 2016-04-29 2016-09-28 鸿伟木业（仁化）有限公司 Production process of fire-retardant particleboard
CN106985257A (en) * 2016-12-14 2017-07-28 宁波中科朝露新材料有限公司 A kind of low formaldehyde particieboard and preparation method thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108393999A (en) * 2018-03-25 2018-08-14 南京林业大学 Tannin base adhesive particieboard and preparation method thereof
CN110091403A (en) * 2019-05-07 2019-08-06 中国林业科学研究院木材工业研究所 A kind of ultra-thin flake prepares the continuous flat technique of light particleboard
CN110091403B (en) * 2019-05-07 2021-08-27 中国林业科学研究院木材工业研究所 Continuous flat pressing process for preparing light shaving board from ultrathin large-sized wood shavings
CN111113607A (en) * 2019-12-10 2020-05-08 华南农业大学 Shaving board and preparation method and application thereof
CN111993525A (en) * 2020-09-01 2020-11-27 广西壮族自治区林业科学研究院 Preparation method of light-weight shaving board
CN111993525B (en) * 2020-09-01 2022-03-11 广西壮族自治区林业科学研究院 Preparation method of light-weight shaving board
CN113172720A (en) * 2021-05-07 2021-07-27 辽宁尼尔科达环保材料有限公司 Sky blue anion wood particle board
CN113172721A (en) * 2021-05-07 2021-07-27 辽宁尼尔科达环保材料有限公司 Bamboo charcoal solid wood particle board
CN114872163A (en) * 2021-12-21 2022-08-09 山东菏泽茂盛木业有限公司 Production method of low-formaldehyde light shaving board

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Application publication date: 20180209

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