CN108995236A - A kind of manufacturing process of corrosion protection type heat shrink films - Google Patents
A kind of manufacturing process of corrosion protection type heat shrink films Download PDFInfo
- Publication number
- CN108995236A CN108995236A CN201810485691.7A CN201810485691A CN108995236A CN 108995236 A CN108995236 A CN 108995236A CN 201810485691 A CN201810485691 A CN 201810485691A CN 108995236 A CN108995236 A CN 108995236A
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- CN
- China
- Prior art keywords
- film
- manufacturing process
- shrink films
- heat shrink
- corrosion protection
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
- B29C41/30—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length incorporating preformed parts or layers, e.g. moulding around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
- B29C41/32—Making multilayered or multicoloured articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
- B29C55/12—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/085—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using gamma-ray
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Wrappers (AREA)
Abstract
The invention discloses a kind of manufacturing process of corrosion protection type heat shrink films, the manufacturing process includes the following steps: that material just melts, and required raw material are placed in high temperature, molten condition is at, are squeezed out after raw material are in a molten state;Raw material are squeezed out curtain coating or extrusion blow into film, then heated to film surface by first one-step film forming;First film is pre-processed, the gamma-ray irradiation of Co60, then biaxially oriented film at a temperature of 150 DEG C are used on film, obtains the heat-shrinkable film of the crosslinking of good heat-shrinkable;Lamination molding, carries out lamination for obtained heat-shrinkable film and non-woven fabrics again and is synthesized together into wound membrane, adds antirust agent into non-woven fabrics during lamination is molding;Heat shrink films are stored in storehouse by packaging, heat-sealing at after bag.Film made from the manufacturing process of this kind of corrosion protection type heat shrink films has more outstanding rustless property.
Description
Technical field
The present invention relates to a kind of manufacturing process of heat shrink films, specially a kind of manufacture work of corrosion protection type heat shrink films
Skill belongs to heat shrink films manufacture applied technical field.
Background technique
Heat shrink films are used for the sale and transport of various products, and main function is to consolidate, cover and protect product;It shrinks
Film must paracentesis resistance with higher, good shrinkage and certain shrinkage stress.In contraction process, film cannot be produced
Raw hole;Since shrink film is often suitable for outdoor, it is therefore desirable to UV UV resistant agent be added.
When wrapping up the special equipment of some large sizes using heat shrink films, such as motor-car, yacht, elevator, wind-power electricity generation etc.,
The precision of these special equipments is higher, and surface accuracy is even more to have higher requirement, so it is certain to need safeguard to have
Antirust ability, but traditional heat shrink films and other wrap films do not have antirust ability.Therefore, regarding to the issue above
It is proposed a kind of manufacturing process of corrosion protection type heat shrink films.
Summary of the invention
The object of the invention is that providing a kind of manufacture of corrosion protection type heat shrink films to solve the above-mentioned problems
Technique.
The present invention is achieved through the following technical solutions above-mentioned purpose, a kind of manufacture work of corrosion protection type heat shrink films
Skill, the manufacturing process include the following steps:
(1) material just melts, and different high molecular materials is placed in a device with different proportion, makes it at molten condition, when
It is squeezed out after raw material are in a molten state;
(2) first one-step film forming will be squeezed out through three-layer co-extruded blown film by the raw material under molten condition that step (1) obtains into wound membrane,
Then film surface is heated, then wound membrane is made the belt shape film of different size, place belt shape film in rolls;
(3) first film is pre-processed, the gamma-ray irradiation of Co60 is used on by film obtained in step (2), then at 150 DEG C
At a temperature of biaxially oriented film, obtain the heat-shrinkable film of the crosslinking of good heat-shrinkable, put heat-shrinkable film in rolls
It sets;
(4) lamination forms, and obtained heat-shrinkable film and non-woven fabrics are carried out lamination again and are synthesized together into wound membrane, lamination at
Antirust agent is added during type into non-woven fabrics;
(5) it packs, be put in storage, bag-shaped bag film storage storage, another portion are made through hot sealing process for obtained a part of wound membrane
The wound membrane divided directly is put in storage storage.
Preferably, the high molecular material in the step (1) be one of HDPE, PP resin, low density polyethylene (LDPE) or
It is several.
Preferably, the mode heated in the step (2) to film surface is the electrically heated mode of PTC, film quilt
The temperature of end face is heated between 60 degrees Celsius -80 degrees Celsius.
Preferably, film strips when biaxially oriented film, are first stretched 200% or more, so at a temperature of 150 DEG C by the step (3)
After make material retraction to 100%.
Preferably, in the step (3) time of the gamma-ray irradiation of Co60 between 30 seconds to 60 seconds, in irradiation apparatus
The plate body of upper installation isolation radiation.
Preferably, the ratio for the antirust agent being coated on substrate non-woven fabrics in the step (4) is 2%, using applying when coating
Cloth machine.
Preferably, in the step (5) size of bag film in 10cm*60cm between 100cm*100cm.
The beneficial effects of the present invention are: the heat shrink films obtained by the manufacturing process of this kind of corrosion protection type heat shrink films
It can be used for large-scale equipment, such as: motor-car, yacht, elevator, wind-power electricity generation special equipment packaging protecting, it is direct using bag film
It is socketed in high end module room surface, convenient for carrying out packaging protection to high end module room.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Embodiment one:
A kind of manufacturing process of corrosion protection type heat shrink films, the manufacturing process include the following steps:
(1) material just melts, and different high molecular materials is placed in a device with different proportion, makes it at molten condition, when
It is squeezed out after raw material are in a molten state;
(2) first one-step film forming will be squeezed out through three-layer co-extruded blown film by the raw material under molten condition that step (1) obtains into wound membrane,
Then film surface is heated, then wound membrane is made the belt shape film of different size, place belt shape film in rolls;
(3) first film is pre-processed, the gamma-ray irradiation of Co60 is used on by film obtained in step (2), then at 150 DEG C
At a temperature of biaxially oriented film, obtain the heat-shrinkable film of the crosslinking of good heat-shrinkable, put heat-shrinkable film in rolls
It sets;
(4) lamination forms, and obtained heat-shrinkable film and non-woven fabrics are carried out lamination again and are synthesized together into wound membrane, lamination at
Antirust agent is added during type into non-woven fabrics;
(5) it packs, be put in storage, bag-shaped bag film storage storage, another portion are made through hot sealing process for obtained a part of wound membrane
The wound membrane divided directly is put in storage storage.
Further, the high molecular material in the step (1) is HDPE and PP resin.
Further, the mode heated in the step (2) to film surface is the electrically heated mode of PTC, film
The temperature for being heated end face is 70 degrees Celsius.
Further, film strips when biaxially oriented film, are first stretched 200% or more at a temperature of 150 DEG C by the step (3),
Then make material retraction to 100%.
Further, in the step (3) gamma-ray irradiation of Co60 time be 40 seconds, on irradiation apparatus installation every
The plate body radiated absolutely.
Further, the ratio for the antirust agent being coated on substrate non-woven fabrics in the step (4) is 2%, and when coating uses
Coating machine.
Further, in the step (5) size of bag film between 100cm*100cm.
The manufacturing process of this kind of heat shrink films is at low cost, and high end module room surface is directly socketed in using bag film, is convenient for
Packaging protection is carried out to high end module room.
Embodiment two:
A kind of manufacturing process of corrosion protection type heat shrink films, the manufacturing process include the following steps:
(1) material just melts, and different high molecular materials is placed in a device with different proportion, makes it at molten condition, when
It is squeezed out after raw material are in a molten state;
(2) first one-step film forming will be squeezed out through three-layer co-extruded blown film by the raw material under molten condition that step (1) obtains into wound membrane,
Then film surface is heated, then wound membrane is made the belt shape film of different size, place belt shape film in rolls;
(3) first film is pre-processed, the gamma-ray irradiation of Co60 is used on by film obtained in step (2), then at 150 DEG C
At a temperature of biaxially oriented film, obtain the heat-shrinkable film of the crosslinking of good heat-shrinkable, put heat-shrinkable film in rolls
It sets;
(4) lamination forms, and obtained heat-shrinkable film and non-woven fabrics are carried out lamination again and are synthesized together into wound membrane, lamination at
Antirust agent is added during type into non-woven fabrics;
(5) it packs, be put in storage, bag-shaped bag film storage storage, another portion are made through hot sealing process for obtained a part of wound membrane
The wound membrane divided directly is put in storage storage.
Further, the high molecular material in the step (1) is PP resin, low density polyethylene (LDPE).
Further, the mode heated in the step (2) to film surface is the electrically heated mode of PTC, film
The temperature for being heated end face is 80 degrees Celsius.
Further, film strips when biaxially oriented film, are first stretched 200% or more at a temperature of 150 DEG C by the step (3),
Then make material retraction to 100%.
Further, in the step (3) gamma-ray irradiation of Co60 time be 50 seconds, on irradiation apparatus installation every
The plate body radiated absolutely.
Further, the ratio for the antirust agent being coated on substrate non-woven fabrics in the step (4) is 2%, and when coating uses
Coating machine.
Further, the size of bag film is 80cm in the step (5).
The manufacturing process of this kind of heat shrink films is at low cost, is obtained by the manufacturing process of this kind of corrosion protection type heat shrink films
Heat shrink films can be used for large-scale equipment.
Embodiment three:
A kind of manufacturing process of corrosion protection type heat shrink films, the manufacturing process include the following steps:
(1) material just melts, and different high molecular materials is placed in a device with different proportion, makes it at molten condition, when
It is squeezed out after raw material are in a molten state;
(2) first one-step film forming will be squeezed out through three-layer co-extruded blown film by the raw material under molten condition that step (1) obtains into wound membrane,
Then film surface is heated, then wound membrane is made the belt shape film of different size, place belt shape film in rolls;
(3) first film is pre-processed, the gamma-ray irradiation of Co60 is used on by film obtained in step (2), then at 150 DEG C
At a temperature of biaxially oriented film, obtain the heat-shrinkable film of the crosslinking of good heat-shrinkable, put heat-shrinkable film in rolls
It sets;
(4) lamination forms, and obtained heat-shrinkable film and non-woven fabrics are carried out lamination again and are synthesized together into wound membrane, lamination at
Antirust agent is added during type into non-woven fabrics;
(5) it packs, be put in storage, bag-shaped bag film storage storage, another portion are made through hot sealing process for obtained a part of wound membrane
The wound membrane divided directly is put in storage storage.
Further, the high molecular material in the step (1) is HDPE, PP resin, low density polyethylene (LDPE).
Further, the mode heated in the step (2) to film surface is the electrically heated mode of PTC, film
The temperature for being heated end face is 60 degrees Celsius.
Further, film strips when biaxially oriented film, are first stretched 200% or more at a temperature of 150 DEG C by the step (3),
Then make material retraction to 100%.
Further, in the step (3) gamma-ray irradiation of Co60 time be 50 seconds, on irradiation apparatus installation every
The plate body radiated absolutely.
Further, the ratio for the antirust agent being coated on substrate non-woven fabrics in the step (4) is 2%, and when coating uses
Coating machine.
Further, in the step (5) size of bag film in 10cm*60cm between 100cm*100cm.
The manufacturing process of this kind of heat shrink films is at low cost, while improving thermal contraction film strength using non-woven fabrics.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of manufacturing process of corrosion protection type heat shrink films, it is characterised in that: the manufacturing process of the heat shrink films includes
Following steps:
(1) material just melts, and different high molecular materials is placed in a device with different proportion, makes it at molten condition, when
It is squeezed out after raw material are in a molten state;
(2) first one-step film forming will be squeezed out through three-layer co-extruded blown film by the raw material under molten condition that step (1) obtains into wound membrane,
Then film surface is heated, then wound membrane is made the belt shape film of different size, place belt shape film in rolls;
(3) first film is pre-processed, the gamma-ray irradiation of Co60 is used on by film obtained in step (2), then at 150 DEG C
At a temperature of biaxially oriented film, obtain the heat-shrinkable film of the crosslinking of good heat-shrinkable, put heat-shrinkable film in rolls
It sets;
(4) lamination forms, and obtained heat-shrinkable film and non-woven fabrics are carried out lamination again and are synthesized together into wound membrane, lamination at
Antirust agent is added during type into non-woven fabrics;
(5) it packs, be put in storage, bag-shaped bag film storage storage, another portion are made through hot sealing process for obtained a part of wound membrane
The wound membrane divided directly is put in storage storage.
2. a kind of manufacturing process of corrosion protection type heat shrink films according to claim 1, it is characterised in that: the step
(1) high molecular material in is one or more of HDPE, PP resin, low density polyethylene (LDPE).
3. a kind of manufacturing process of corrosion protection type heat shrink films according to claim 1, it is characterised in that: the step
(2) mode heated in film surface is the electrically heated mode of PTC, and the temperature that film is heated end face is Celsius 60
Between -80 degrees Celsius of degree.
4. a kind of manufacturing process of corrosion protection type heat shrink films according to claim 1, it is characterised in that: the step
(3) at a temperature of 150 DEG C when biaxially oriented film, film strips is first stretched 200% or more, then make material retraction to 100%.
5. a kind of manufacturing process of corrosion protection type heat shrink films according to claim 1, it is characterised in that: the step
(3) time of the gamma-ray irradiation of Co60, installation completely cut off the plate body of radiation on irradiation apparatus between 30 seconds to 60 seconds in.
6. a kind of manufacturing process of corrosion protection type heat shrink films according to claim 1, it is characterised in that: the step
(4) ratio for the antirust agent being coated on substrate non-woven fabrics in is 2%, and coating machine is used when coating.
7. a kind of manufacturing process of corrosion protection type heat shrink films according to claim 1, it is characterised in that: the step
(5) size of bag film is in 10cm*60cm between 100cm*100cm in.
Priority Applications (1)
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CN201810485691.7A CN108995236A (en) | 2018-05-21 | 2018-05-21 | A kind of manufacturing process of corrosion protection type heat shrink films |
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CN201810485691.7A CN108995236A (en) | 2018-05-21 | 2018-05-21 | A kind of manufacturing process of corrosion protection type heat shrink films |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1036728A (en) * | 1988-03-15 | 1989-11-01 | 株式会社吉野工业所 | Adopt the Biaxially stretched blow-molded method that makes the moulding of acrylic plastic holding device |
CN101032859A (en) * | 2007-04-25 | 2007-09-12 | 白山市金鑫新型材料有限公司 | Radiation crosslinking EVA-PE film surrounding floor board and the producing technique |
CN101879802A (en) * | 2010-07-13 | 2010-11-10 | 浙江大东南包装股份有限公司 | Multifunctional long-acting antirust film and preparation method thereof |
CN103448254A (en) * | 2013-08-30 | 2013-12-18 | 华威聚酰亚胺有限责任公司 | Biaxially-oriented polypropylene capacitance film resisting high temperature and preparation method thereof |
-
2018
- 2018-05-21 CN CN201810485691.7A patent/CN108995236A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1036728A (en) * | 1988-03-15 | 1989-11-01 | 株式会社吉野工业所 | Adopt the Biaxially stretched blow-molded method that makes the moulding of acrylic plastic holding device |
CN101032859A (en) * | 2007-04-25 | 2007-09-12 | 白山市金鑫新型材料有限公司 | Radiation crosslinking EVA-PE film surrounding floor board and the producing technique |
CN101879802A (en) * | 2010-07-13 | 2010-11-10 | 浙江大东南包装股份有限公司 | Multifunctional long-acting antirust film and preparation method thereof |
CN103448254A (en) * | 2013-08-30 | 2013-12-18 | 华威聚酰亚胺有限责任公司 | Biaxially-oriented polypropylene capacitance film resisting high temperature and preparation method thereof |
Non-Patent Citations (2)
Title |
---|
丁浩主编: "《塑料工业实用手册 上》", 31 August 2000, 化学工业出版社;材料科学与工程出版中心 * |
塑料工业科技情报服务站编辑: "《国内塑料科技 塑料制品工业科技工作经验交流会技术资料选编》", 30 September 1975, 塑料工业科技情报服务站 * |
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