CN103669619A - Calcium silicate sandwich heat preservation wallboard and production method - Google Patents

Calcium silicate sandwich heat preservation wallboard and production method Download PDF

Info

Publication number
CN103669619A
CN103669619A CN201310520751.1A CN201310520751A CN103669619A CN 103669619 A CN103669619 A CN 103669619A CN 201310520751 A CN201310520751 A CN 201310520751A CN 103669619 A CN103669619 A CN 103669619A
Authority
CN
China
Prior art keywords
water
calcium silicates
wallboard
storehouse
dry blend
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.)
Granted
Application number
CN201310520751.1A
Other languages
Chinese (zh)
Other versions
CN103669619B (en
Inventor
何辉
杨朴
肖耀军
刘建刚
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.)
LIXIAN JINHUI GYPSUM PRODUCTS CO Ltd
Original Assignee
LIXIAN JINHUI GYPSUM PRODUCTS 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 LIXIAN JINHUI GYPSUM PRODUCTS CO Ltd filed Critical LIXIAN JINHUI GYPSUM PRODUCTS CO Ltd
Priority to CN201310520751.1A priority Critical patent/CN103669619B/en
Publication of CN103669619A publication Critical patent/CN103669619A/en
Application granted granted Critical
Publication of CN103669619B publication Critical patent/CN103669619B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention discloses a calcium silicate sandwich heat preservation wallboard and a production method. A calcium silicate decorating plate with the thickness of 4-6mm serves as a panel, and a middle filler is a hydraulicity substance. The hydraulicity substance comprises, by weight, dry blend and 2% of multiple types of additives, wherein the dry blend is composed of 18-22% of land plaster, 18-22% of cinder, 8-12% of mineral waste residues, 4-6% of yellow sand and 40-46% cement, each ton of dry blend comprises 2.3m<3> of polystyrene granules, and water is added according to the water-material weight ratio of 0.200-0.250. For each ton of dry blend, the multiple types of additives comprise 1.33kg of hydroxypropyl methyl cellulose, 0.39kg of dispersal emulsion powder, 8.4kg of early strength agent, 457ml of water reducing agent and 686ml of air entraining agent. The calcium silicate sandwich heat preservation wallboard has the advantages of being light, proof to water, proof to sound, insulating to heat, proof to fire, high in strength, easy to process and install, good in crack resistance, low in production cost, high in comprehensive cost performance, non-toxic, tasteless and free of radioactive contamination, is a green, healthy and eco-environment protection building material, and can be popularized in the county or to the world.

Description

Calcium silicates sandwich heat preservation wallboard and production method
Technical field
The present invention relates to the calcium silicates sandwich heat preservation wallboard that a kind of exterior wall for highrise building and partition wall are decorated, the invention still further relates to the production method of the sandwich guarantor's wallboard of this calcium silicates.
Background technology
The exterior wall partition wall of the highrise building of existing most domestic is all used the material handworks such as common brick, cement brick, lighter foamed bricks to build by laying bricks or stones and is formed, again through plaster leveling several times, the effort of taking a lot of work very much, cost is high, long in time limit, masonry unit volume weight, the stressed expense of design building mechanics is high, the shortcomings such as rolled steel dosage is large, not environmental protection of wet construction.
Summary of the invention
First technical problem to be solved by this invention is to provide a kind of weight that can reduce highrise building body of wall, unit volume reduces total cost and can improve decoration speed, reduction of erection time, minimizing constructor labour intensity, construction environmental protection calcium silicates sandwich heat preservation wallboard, reduce the gross weight of highrise building.
Second technical problem to be solved by this invention is to provide the production method of the sandwich guarantor's wallboard of this calcium silicates.
In order to solve above-mentioned first technical problem, calcium silicates sandwich heat preservation wallboard provided by the invention, with the calcium silicates decorative panel of 4~6 millimeters, make panel, middle inserts is hydraulicity material, described hydraulicity material formula is by weight: the dry blend being formed by land plaster 18~22%, cinder 18~22%, slag 8~12%, yellow ground 4~6%, cement 40~46% and 2% multiple additives, in dry blend per ton, be furnished with 2.3m 3granules of polystyrene, by water material weight ratio 0.200~0.23~0.250, add water, described multiple additives is calculated by dry blend per ton: hydroxypropyl methylcellulose 1.33kg, polymer dispersion powder 0.39kg, early strength admixture 8.4kg, water reducing agent 457ml, air entraining agent 686ml.
In order to solve above-mentioned second technical problem, the method of production calcium silicates sandwich heat preservation wallboard provided by the invention, with calcium silicates decorative panel, make panel, land plaster, cinder, cement, yellow ground, slag, granules of polystyrene and multiple additives add water after stirring, after stirring again, pour into ready in-mold molding, solidifying phase form removal in initial set at normal temperatures extremely, the folded code of finished product batten after depanning, execute water curing 2-3 every day, the installation of dispatching from the factory of 28 days final set after dates.
Adding water stirs rear water batch mixing again and can flow.
In initial set at normal temperatures extremely, the time of solidifying phase is 22~26 hours.
It is one yard that finished product batten after depanning stacks ten.
The production of described granules of polystyrene is completed by polystyrene bulking machine, and raw material is 8-10kg/cm by passing into pressure after entering bulking machine 2steam p-poly-phenyl ethene carry out expanded, swelling granular is sent to once and in expanded storehouse, is continued expandedly after diameter of phi 3-4mm by blast fan for the first time, and the pellet in expanded storehouse is once entered in bulking machine after secondary puffing by blast fan to deliver to and in secondary puffing storehouse, continue expandedly just to enter into formula during to diameter of phi 6-8mm and use again.
Production procedure is controlled by a computer is omnidistance, by electronic scale, by the material in land plaster storehouse, cinder storehouse, slag storehouse, yellow ground storehouse, cement bin, by the material of every mould requirement of proportional control in formula, expected down respectively to send in auger premix feeder to add water after mixer and stir 5-8 minute gained water batch mixing and pour into the die for molding of making panel of calcium silicates decorative panel.
Adopt calcium silicates sandwich heat preservation wallboard and the production method of technique scheme, land plaster, cinder ash, slag and cement are hydraulicity material, after adding water, start to solidify, add that yellow ground is as aggregate, and adding multiple additives, hydroxypropyl methylcellulose, polymer dispersion powder and water reducing agent, play and gain in strength, strengthen mobility and the calcium silicate board adherence force of water batch mixing, and can improve the toughness of batten; Early strength admixture be used for improving initial set and in solidifying intensity, shorten demould time; Ejectment batten inner air when air entraining agent is used for stirring and waters mould, the intensity of raising batten.
The production system that the present invention adopts comprises: land plaster feed bin, cinder ash feed bin, slag (grain slag) feed bin, cement silo and granules of polystyrene material secondary puffing storehouse (feed bin); each feed bin is respectively equipped with an electronic scale and light material volume gauger, is dry mixed feeding auger, mixer, die assembly, mould vehicle, light rail; Ancillary service comprises water pump, the poly-expanded unit of the third ethene particle, once expanded storehouse, 0.7 boiler and 3 tons of row hang, 3 ton forklifts and transport the lorry etc. of batten.
According to above-mentioned provided technical formula and production equipment, for solving the problem of the technological process of production, patent of the present invention to producing the technical scheme of the technological process of calcium silicates sandwich heat preservation wallboard is: according to the gross weight that the required dry blend of mould of 10 blocks of plates is installed in a mould vehicle, by computer, controlled, gypsum bunker, cinder ash feed bin, slag feed bin, yellow ground feed bin, the electronic scale of cement silo, in the ratio in formula, expect down that being respectively dry mixed feeding auger is sent in mixer, add granules of polystyrene and various additive simultaneously, and add water and stir 5-8 minute, wet mixed feed after stirring will have good mobility, pour into again in ready mould vehicle and fill with mold forming, through filling mould vehicle, by winch, transported to initial set only put place after 24 hours by the artificial demoulding, from mould vehicle, putting down folded ten blocks of plates is one yard, execute water 2-3 every day, the installation of dispatching from the factory of 28 days final set after dates, all round process carries out at normal temperatures.
Granules of polystyrene material is controlled by volume gauger feed by computer.
Amount of water is controlled water pump water adding by computer.
Various additives are by manually adding.
Mould vehicle enter fill with mould before by artificial combination mould (dress mould), four rail wheels are installed under the base plate of mould vehicle, be convenient to walk on light rail, side plate and the dividing plate of vertical installation mold on the chassis of mould vehicle, tightly glue side plate or dividing plate, two calcium silicates panels of every cover die interpolation by the front of calcium silicate board panel (smooth one side), ten molds are installed in every mould vehicle, every row's two molds, five arrange totally, and the mould vehicle having combined is placed on fills with the standby parking stall of mould platform.
Calcium silicates sandwich heat preservation wallboard and the old-fashioned walling according to above-mentioned provided technical formula, produced relatively have following progress: bulk density be gently brick wall masonry gross weight 1/6, gas concrete brick 1/2; Extraordinary water resistance, its coefficient of softening is 0.76-0.93; Intensity is high, and compressive strength can reach 3.-4.7mpa; Crack resistance is good, and drying shrinkage value is 0.24mm/m; Soundproof effect good (being greater than 35-45/db); Fireproof performance good (being greater than 1.5-4h); There is good breathing performance, when indoor environment temperature is larger, the moisture absorption of wallboard energy, otherwise, when dry, can automatically discharge again the moisture of deposit, humidity in conditioning chamber is beneficial to people healthy very much automatically; Energy-saving heat preserving is good, the little (1.7w/m of coefficient of thermal conductivity 2.k), be about 25% of concrete goods 20%, loam brick; Processability is good, and it is very convenient that product can cut when mounted, can follow closely, can bore, can saw, pipeline is buried underground; Walling installation floor space is little, can increase house usable floor area; Material source is extensive, and gypsum is self-produced, and can design and utilize waste material, and flyash and slag, turn waste into wealth; Cost of production is low, uses comprehensive cost performance high; Repeat usage high (70-90%), dismounting is all very simple and efficient, and economic benefit is high; Nontoxic, tasteless, the first alpha-contamination pure natural of formula for a product, green, health, ecological, environmental protective walling.
In sum, the present invention is that a kind of weight that can reduce highrise building body of wall unit volume reduces total cost and can improve the calcium silicates sandwich heat preservation wallboard of decoration speed, reduction of erection time, minimizing constructor labour intensity, construction environmental protection, reduce the gross weight of highrise building.Its production method simple and fast.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further described.
Fig. 1 is patent clearance-type technological process of production schematic diagram of the present invention.
Fig. 2 is patent equipment production procedure schematic diagram of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment 1:
With the calcium silicates decorative panel of 5 millimeters, make panel, middle inserts is hydraulicity material, described hydraulicity material formula is by weight: the dry blend being formed by land plaster 20%, cinder 20%, slag 10%, yellow ground 5%, cement 43% and 2% multiple additives, in dry blend per ton, be furnished with 2.3m 3granules of polystyrene, by water material weight ratio 0.23, add water, described multiple additives is calculated by dry blend per ton: hydroxypropyl methylcellulose 1.33kg, polymer dispersion powder 0.39kg, early strength admixture 8.4kg, water reducing agent 457ml, air entraining agent 686ml.
Embodiment 2:
With the calcium silicates decorative panel of 4 millimeters, make panel, middle inserts is hydraulicity material, described hydraulicity material formula is by weight: the dry blend being formed by land plaster 18%, cinder 18%, slag 12%, yellow ground 4%, cement 46% and 2% multiple additives, in dry blend per ton, be furnished with 2.3m 3granules of polystyrene, by water material weight ratio 0.230, add water, described multiple additives is calculated by dry blend per ton: hydroxypropyl methylcellulose 1.33kg, polymer dispersion powder 0.39kg, early strength admixture 8.4kg, water reducing agent 457ml, air entraining agent 686ml.
Embodiment 3:
With the calcium silicates decorative panel of 4~6 millimeters, make panel, middle inserts is hydraulicity material, described hydraulicity material formula is by weight: the dry blend being formed by land plaster 22%, cinder 22%, slag 8%, yellow ground 6%, cement 40% and 2% multiple additives, in dry blend per ton, be furnished with 2.3m 3granules of polystyrene, by water material weight ratio 0.250, add water, described multiple additives is calculated by dry blend per ton: hydroxypropyl methylcellulose 1.33kg, polymer dispersion powder 0.39kg, early strength admixture 8.4kg, water reducing agent 457ml, air entraining agent 686ml.
Referring to Fig. 1 and Fig. 2, computer is controlled electronic scale 16, by land plaster feed bin 1, cinder ash feed bin 2, slag (grain slag) storehouse 3, yellow ground feed bin 4, the material of cement silo 5 by formula in part by weight respectively blanking in being dry mixed feeding auger 15, auger is sent dry blend into mixer 10, the raw material in polystyrene raw material storehouse 7 enters in granules of polystyrene bulking machine 12 and passes into high temperature and high pressure steam 9, carry out sending into once after expanded for the first time in expanded feed bin 8, continue expanded, while making particle diameter reach Φ 4-5mm, (48 hours) enter secondary puffing in bulking machine 12 again, swelling granular enters raw material silo 6(secondary puffing feed bin) proceed swelling granular diameter value Φ 6-8mm, it is good (lower than 25 ℃, need manage separately to improve temperature in storehouse) above that room temperature is maintained to 25 ℃, particulate material in polystyrene raw material storehouse 6 controls by computer that volume gauger 17 quantitatively enters granules of polystyrene and dry blend and cement mixer 10 simultaneously and by computer control water pump 23, add quantitative water, add various additives: hydroxypropyl methylcellulose 18 simultaneously, polymer dispersion powder 19, early strength admixture 20, water reducing agent 21, diversion agent 22, fully stir 5-8 minute, water batch mixing is poured into moulding in the mould 11 of getting ready, by mould vehicle 13, mould is transported in the standing field of initial set from light rail 14, initial set at normal temperatures 22~26 hours in solidifying phase form removal, it is one yard that finished product batten after depanning stacks ten, execute water curing 2-3 every day, the installation of dispatching from the factory of 28 days final set after dates.2.44 meters of the general length of batten specification, wide 0.61 meter, its thickness has the plurality of specifications such as 60,75,90,120,150 millimeters.The above is an explained hereafter flow process, and second explained hereafter flow process repeats above work, the clearance-type mode of production of going round and beginning again.

Claims (7)

1. a calcium silicates sandwich heat preservation wallboard, it is characterized in that: with the calcium silicates decorative panel of 4~6 millimeters, make panel, middle inserts is hydraulicity material, described hydraulicity material formula is by weight: the dry blend being formed by land plaster 18~22%, cinder 18~22%, slag 8~12%, yellow ground 4~6%, cement 40~46% and 2% multiple additives, in dry blend per ton, be furnished with 2.3m 3granules of polystyrene, by water material weight ratio 0.200~0.250, add water, described multiple additives is calculated by dry blend per ton: hydroxypropyl methylcellulose 1.33kg, polymer dispersion powder 0.39kg, early strength admixture 8.4kg, water reducing agent 457ml, air entraining agent 686ml.
2. the method for the sandwich guarantor's wallboard of production calcium silicates according to claim 1, it is characterized in that: with calcium silicates decorative panel, make panel, land plaster, cinder, cement, yellow ground, slag, granules of polystyrene and multiple additives add water after stirring, then after stirring, pour into ready in-mold molding, solidifying phase form removal in initial set at normal temperatures extremely, the folded code of finished product batten after depanning, execute water curing 2-3 every day, the installation of dispatching from the factory of 28 days final set after dates.
3. the method for the sandwich guarantor's wallboard of production calcium silicates according to claim 2, is characterized in: after adding water stirring, water batch mixing can flow.
4. according to the method for the sandwich guarantor's wallboard of production calcium silicates described in claim 2 or 3, be characterized in: in initial set at normal temperatures extremely, the time of solidifying phase is 22~26 hours.
5. the method for the sandwich guarantor's wallboard of production calcium silicates according to claim 2, is characterized in: it is one yard that the finished product batten after depanning stacks ten.
6. according to the method for the sandwich guarantor's wallboard of production calcium silicates described in claim 2 or 3, it is characterized in that: the production of described granules of polystyrene is completed by polystyrene bulking machine, raw material is 8-10kg/cm by passing into pressure after entering bulking machine 2steam p-poly-phenyl ethene carry out expanded, swelling granular is sent to once and in expanded storehouse, is continued expandedly after diameter of phi 3-4mm by blast fan for the first time, and the pellet in expanded storehouse is once entered in bulking machine after secondary puffing by blast fan to deliver to and in secondary puffing storehouse, continue expandedly just to enter into formula during to diameter of phi 6-8mm and use again.
7. according to the method for the production calcium silicates sandwich heat preservation wallboard described in claims 2 or 3, it is characterized in that: production procedure is controlled by a computer is omnidistance, by electronic scale, by the material in land plaster storehouse, cinder storehouse, slag storehouse, yellow ground storehouse, cement bin, by the material of every mould requirement of proportional control in formula, expected down respectively to send in auger premix feeder to add water after mixer and stir 5-8 minute gained water batch mixing and pour into the die for molding of making panel of calcium silicates decorative panel.
CN201310520751.1A 2013-10-29 2013-10-29 Calcium silicate sandwich heat preservation wallboard and production method Active CN103669619B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310520751.1A CN103669619B (en) 2013-10-29 2013-10-29 Calcium silicate sandwich heat preservation wallboard and production method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310520751.1A CN103669619B (en) 2013-10-29 2013-10-29 Calcium silicate sandwich heat preservation wallboard and production method

Publications (2)

Publication Number Publication Date
CN103669619A true CN103669619A (en) 2014-03-26
CN103669619B CN103669619B (en) 2016-01-20

Family

ID=50308329

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310520751.1A Active CN103669619B (en) 2013-10-29 2013-10-29 Calcium silicate sandwich heat preservation wallboard and production method

Country Status (1)

Country Link
CN (1) CN103669619B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104695616A (en) * 2015-01-07 2015-06-10 黄文辉 Lightweight soundproof cement ribbon board and production method thereof
CN105313219A (en) * 2014-07-21 2016-02-10 许健亮 Movable production method of cement honeycomb composite wallboard and production device used for movable production method
CN105731906A (en) * 2016-04-23 2016-07-06 澧县方石坪镇杨朴矿山机械厂 Slag partition wall light building block producing method
CN105835223A (en) * 2016-05-17 2016-08-10 澧县方石坪镇杨朴矿山机械厂 Method for producing calcium silicate sandwich wall panel
CN105924054A (en) * 2016-04-16 2016-09-07 澧县方石坪镇杨朴矿山机械厂 Production method of foamed sandwich plate
CN108840624A (en) * 2018-07-09 2018-11-20 武汉理工大学 A kind of rapid curing light weight board and preparation method thereof suitable for assembled architecture

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101956430A (en) * 2010-08-13 2011-01-26 上海康尼建材科技有限公司 Energy-saving, low-carbon and heat-insulation composite wallboard, and production method and equipment thereof
KR20110095999A (en) * 2010-02-20 2011-08-26 김용배 Insulating composite panel for construction and manufacturing method thereof
CN102505798A (en) * 2011-11-24 2012-06-20 厦门大学 Composite heat-insulating wallboard and preparation method thereof
CN202519801U (en) * 2012-03-13 2012-11-07 上海希尼卡环保节能材料有限公司 Building fire prevention composite insulation board
CN102979207A (en) * 2012-11-12 2013-03-20 青岛科瑞新型环保材料有限公司 Modified cement polyphenyl granule composite vacuum insulated panel and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110095999A (en) * 2010-02-20 2011-08-26 김용배 Insulating composite panel for construction and manufacturing method thereof
CN101956430A (en) * 2010-08-13 2011-01-26 上海康尼建材科技有限公司 Energy-saving, low-carbon and heat-insulation composite wallboard, and production method and equipment thereof
CN102505798A (en) * 2011-11-24 2012-06-20 厦门大学 Composite heat-insulating wallboard and preparation method thereof
CN202519801U (en) * 2012-03-13 2012-11-07 上海希尼卡环保节能材料有限公司 Building fire prevention composite insulation board
CN102979207A (en) * 2012-11-12 2013-03-20 青岛科瑞新型环保材料有限公司 Modified cement polyphenyl granule composite vacuum insulated panel and preparation method thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105313219A (en) * 2014-07-21 2016-02-10 许健亮 Movable production method of cement honeycomb composite wallboard and production device used for movable production method
CN105313219B (en) * 2014-07-21 2018-10-09 许健亮 A kind of movable production method and its production equipment of cement honeycomb composite panel
CN104695616A (en) * 2015-01-07 2015-06-10 黄文辉 Lightweight soundproof cement ribbon board and production method thereof
CN105924054A (en) * 2016-04-16 2016-09-07 澧县方石坪镇杨朴矿山机械厂 Production method of foamed sandwich plate
CN105731906A (en) * 2016-04-23 2016-07-06 澧县方石坪镇杨朴矿山机械厂 Slag partition wall light building block producing method
CN105835223A (en) * 2016-05-17 2016-08-10 澧县方石坪镇杨朴矿山机械厂 Method for producing calcium silicate sandwich wall panel
CN108840624A (en) * 2018-07-09 2018-11-20 武汉理工大学 A kind of rapid curing light weight board and preparation method thereof suitable for assembled architecture
CN108840624B (en) * 2018-07-09 2021-06-04 武汉理工大学 Fast-curing light plate suitable for assembly type building and preparation method thereof

Also Published As

Publication number Publication date
CN103669619B (en) 2016-01-20

Similar Documents

Publication Publication Date Title
CN103669619B (en) Calcium silicate sandwich heat preservation wallboard and production method
CN203779691U (en) Regional difference hopper batching production system for calcium silicate sandwich insulating wallboard
CN203779696U (en) Hopper/skip bucket batching production system for calcium silicate sandwich insulating wallboard
CN104478362A (en) Self-insulation foam concrete building block as well as manufacturing technology and mounting method
CN106393416A (en) Production method for iron furnace slag light building block
CN106042144A (en) Coal ash foam building block production method
CN103193446A (en) Method for producing waste residue foam concrete and nanopore vacuum plate composite material
CN104355576A (en) Waterproof self-insulation brick and preparation method thereof
CN103641416B (en) A kind of heat-insulating construction material
CN203636993U (en) Burdening production system of lifting skip bucket of calcium silicate sandwich thermal insulation wallboard
CN110981330A (en) Fabricated recycled aggregate lightweight concrete external wallboard and preparation method thereof
CN105731906B (en) A kind of clinker partition wall light block production method
CN102898088A (en) Heat-insulation sound-insulation light-weight high-strength aerated concrete building block and producing method thereof
CN203636996U (en) Ingredient production system of calcium silicate sandwich thermal insulation wallboard belt conveyor
CN104446193B (en) A kind of foam cement composite self-insulating brick and processing technique thereof
CN104446611B (en) A kind of adiabatic sound absorption aerated bricks and preparation method thereof
CN108726958A (en) A method of preparing concrete partition using building castoff
CN101492273A (en) Method for producing foaming concrete dry powder mortar
CN204546787U (en) A kind of production system of cinder light block
CN203636997U (en) Burdening production system of calcium silicate sandwich heat preservation wall plate scrapper
CN205097352U (en) Calcium silicate with filling foam wallboard production system
CN107901206A (en) A kind of partition block production technology
CN105799052A (en) Coal cinder wallboard production method
CN204585519U (en) A kind of calcium silicates sandwich heat preservation Wall plate forklift batching production system
CN106003370A (en) Production method for foam sandwich type wall panels

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant