CN1807337A - Gypsum base swelling perlite heat-insulating mortar dry powder and its usage method - Google Patents

Gypsum base swelling perlite heat-insulating mortar dry powder and its usage method Download PDF

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Publication number
CN1807337A
CN1807337A CNA200610038042XA CN200610038042A CN1807337A CN 1807337 A CN1807337 A CN 1807337A CN A200610038042X A CNA200610038042X A CN A200610038042XA CN 200610038042 A CN200610038042 A CN 200610038042A CN 1807337 A CN1807337 A CN 1807337A
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insulating mortar
dry powder
heat
swelling perlite
gypsum base
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王正权
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Nanjing Cengo Energy-saving Material Co., Ltd.
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王正权
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Abstract

The invention relates to a gypsum base swelling perlite heat-insulating mortar dry powder, wherein each unit of the thermal insulating mortar dried powder comprises the following raw material as the components: expanded perlite 0.9-1.1m3, beta CaSO4*1/2H2O 145-165kg, common silicate cement 18-22kg, grade I coal ash and/or grade II coal ash and/or high calcium ash 45-65kg, polypropylene fiber 0.4-1kg, 80-100 mesh heavy calcium powder and/or calcium carbonate powder 1.3-1.7kg, cellulose methyl and/or methylcellulose propylene glycol ether 1.5-2.5kg, gypsum retarder 3.0-5.0kg and sodium dodecyl silicate 0.008-0.013kg.

Description

Gypsum base swelling perlite heat-insulating mortar dry powder and using method thereof
Technical field
The present invention relates to a kind of heat-insulating mortar dry powder that is applied to building energy saving field, especially a kind of gypsum base swelling perlite heat-insulating mortar dry powder that is applied to exterior wall internal insulation system, roof heat insulation system and stair heat-insulation system, and a kind of using method of this heat-insulating mortar dry powder is provided.
Background technology
At present, country advocates the society that builds saving type just energetically, and buildings must be with building energy conservation as its developing direction.External wall outer insulation is the important technical of building energy conservation, has become the focus of building energy conservation.But the building energy conservation mode of external wall outer insulation also has the limitation of itself.Consider the requirement of safety performances such as fire prevention, weathering resistance, the building energy conservation form of exterior wall internal insulation is also with long-term existence.Exterior wall internal insulation mainly contains cement based swelling perlite heat-insulating mortar and expansion or two kinds of forms of extrusion molding type styrofoam (abbreviation styrofoam) now.Cement based swelling perlite heat-insulating mortar in present market is because low, the easy construction of its cost, fire resistance advantages of higher occupation rate are higher, though styrofoam has shortcomings such as its cost is higher, construction is complicated, fire resistance is low, but its heat insulating effect is with the obvious advantage, so it has still obtained certain application, take second place than cement based swelling perlite heat-insulating mortar share of market.But all there is the common shortcoming in above both interior insulation patterns, and their effects of prestressed are relatively poor, and the harmful crackle in surface is difficult to control, has not only influenced the effect of building energy conservation, and not attractive in appearance, even has potential safety hazard.
Summary of the invention
The objective of the invention is to solve the crack problem in the exterior wall internal insulation in the building energy conservation, provide a kind of effect of prestressed good gypsum base swelling perlite heat-insulating mortar dry powder.
Another object of the present invention provides a kind of using method of this gypsum base swelling perlite heat-insulating mortar dry powder.
Gypsum base swelling perlite heat-insulating mortar of the present invention is with by β CaSO 41/2H 2O is gelling material, staple fibre and is the dry powder material that light skeletal and multiple admixture are composited with the pearlstone, adds water during use in proportion, stirs into the thickness slurry, is coated on the working face, and dry back is as the material of thermal insulation layer.
Purpose of the present invention can reach by following measure:
A kind of gypsum base swelling perlite heat-insulating mortar dry powder, it is characterized in that each unit this thermal insulation mortar it form by the raw material of following component: pearlstone: 0.9～1.1m 3, β CaSO 41/2H 2O:145～165kg, ordinary Portland cement: 18～22kg, I level flyash and/or II level flyash and/or high calcium ash: 45～65kg, polypropylene fibre: 0.4～1kg, 80～100 purpose dicalcium powder and/or Paris white: 1.3～1.7kg, methylcellulose gum and/or Vltra tears: 1.5～2.5kg, calcium sulphate retarder: 3.0～5.0kg and dodecyl water glass: 0.008～0.013kg.
Wherein, the preferred component of the heat-insulating mortar dry powder of described each unit is as follows: pearlstone: 0.9～1.1m 3, β CaSO 41/2H 2O:145～165kg, ordinary Portland cement: 18～22kg, I level flyash and/or II level flyash 45～65kg, polypropylene fibre: 0.4～1kg, 80～100 purpose dicalcium powder and/or Paris white: 1.3～1.7kg, methylcellulose gum and/or Vltra tears: 1.5～2.5kg, calcium sulphate retarder: 3.0～5.0kg and dodecyl water glass: 0.008～0.013kg.
The heat-insulating mortar dry powder component of described each unit further is preferably as follows: pearlstone: 0.9～1.1m 3, β CaSO 41/2H 2O:145～165kg, ordinary Portland cement: 18～22kg, I level flyash/or II level flyash 45～65kg, polypropylene fibre: 0.4～1kg, 80～100 purpose dicalcium powder and/or Paris white: 1.3～1.7kg, methylcellulose gum and/or Vltra tears: 1.5～2.5kg, calcium sulphate retarder: 3.0～5.0kg and dodecyl water glass: 0.008～0.013kg.
Further the preferred feedstock component is as follows again for the heat-insulating mortar dry powder of each unit: pearlstone: 1m 3, β CaSO 41/2H 2O:150kg, ordinary Portland cement: 20kg, I level flyash and/or II level flyash and/or high calcium ash: 56kg, polypropylene fibre: 0.7kg, 80～100 purpose dicalcium powder and/or Paris white: 1.3～1.7kg, methylcellulose gum and/or Vltra tears: 2.2kg, calcium sulphate retarder Retarden P and/or SC:4.4kg and dodecyl water glass: 0.011kg.
Described ordinary Portland cement is P52.5 silicate cement or P42.5 silicate cement, and being preferably ordinary Portland cement is the P52.5 silicate cement.
Described calcium sulphate retarder is selected from model: the calcium sulphate retarder of Retarden P and/or model are: the calcium sulphate retarder of SC.
The using method of above-mentioned gypsum base swelling perlite heat-insulating mortar dry powder is characterized in that the heat-insulating mortar dry powder of described each unit is added water 280～330kg water and fully can make gypsum base swelling perlite heat-insulating mortar after the stirring.
Beneficial effect of the present invention:
Outside the advantages such as the cost that gypsum base swelling perlite heat-insulating mortar not only has the cement based swelling perlite heat-insulating mortar is low, easy construction.Its fire resistance also is higher than the cement based swelling perlite heat-insulating mortar, also have respiratory function, automatically regulate indoor humidity, rise from maintenance, intensity fast.In addition, a most outstanding advantage of gypsum base swelling perlite heat-insulating is exactly its uniqueness of having utilized the micro-expansibility and the prescription of gypsum, has almost stopped the tiny crack of gypsum base swelling perlite heat-insulating mortar.Its effect of prestressed obviously is better than cement based swelling perlite heat-insulating mortar and styrofoam.
Gypsum base swelling perlite heat-insulating mortar has not only improved the thermal and insulating performance of buildings, has reduced the heating air-conditioner energy consumption, and save energy has improved people's living quality; It has also utilized municipal wastess such as flyash, turns waste into wealth, and belongs to the environment protecting and power-saving building materials.Economic benefit and social benefit have both, and have very large development space and application prospect.
The effect of prestressed of gypsum base swelling perlite heat-insulating mortar of the present invention is higher than cement based swelling perlite heat-insulating mortar and styrofoam far away.Thermal insulation mortar cracking resistance index value smaller or equal to 2985mm in the gypsum base swelling perlite 2, thermal insulation mortar cracking index value is more than or equal to 3107mm in the cement based pearlstone 2, styrofoam heat preservation system inside cracking index is more than or equal to 4035mm 2
Embodiment
The present invention is further illustrated below in conjunction with embodiment.
The cracking index is meant that under the test specimen of fixed-area the average crack area of different weights is estimated the parameter difference of crack resistance.Test according to mortar and the dry shrinkage crack testing method of concrete that the Paulpkraai of St.George's state university professor is proposed [1] [2]Sample dimensions is 610 * 914 * 19mm, and the template bottom is lined with the two layers of polyethylene plastics film, to reduce the influence of counterdie to the test specimen shrinkage strain.Nail has a circle wire netting around the wooden model, is used to limit shrinkage strain.The wire netting that this wire netting system is 2mm with wide 25mm, mesh is made along 90 ° of center line bendings.Three templates are put side by side, blow the test specimen surface with fan with wind speed 4～5m/s immediately after test specimen is built moulding.After blowing 24h continuously, measure the fracture width and the corresponding length on test specimen surface, in view of the above to evaluate the quality of mortar resistance to cleavage.Adopt experimental situation to be controlled to be (21～29) ℃, relative humidity 45%～55%.
Embodiment 1
Get No. 90 pearlstone: 0.9m 3, β CaSO 41/2H 2O:145kg, P42.5 ordinary Portland cement: 18kg, II level flyash: 45kg, polypropylene fibre: 0.4kg, 80 purpose dicalcium powder: 1.3kg, methylcellulose gum: 1.5kg, model is: the calcium sulphate retarder 3.0kg of Retarden P and dodecyl water glass: 0.008kg, after adding water 280kg during use and fully stirring 10 minutes with mortar mixer, make gypsum base swelling perlite heat-insulating mortar, and test according to mortar and the dry shrinkage crack testing method of concrete that the Paulpkraai professor of above-mentioned St.George's state university is proposed, the cracking index value that records this gypsum base swelling perlite heat-insulating mortar is 2976mm 2
Embodiment 2
Get No. 100 pearlstone: 1.1m 3, β CaSO 41/2H 2O:165kg, P52.5 ordinary Portland cement: 22kg, I level flyash: 65kg, polypropylene fibre: 1kg, 100 purpose Paris white: 1.7kg, Vltra tears: 2.5kg, model is: the calcium sulphate retarder of SC: 5.0kg and dodecyl water glass: 0.013kg, after adding water 330kg during use and fully stirring 10 minutes with mortar mixer, make gypsum base swelling perlite heat-insulating mortar, and test according to mortar and the dry shrinkage crack testing method of concrete that the Paulpkraai professor of above-mentioned St.George's state university is proposed, the cracking index value that records this gypsum base swelling perlite heat-insulating mortar is 2883mm 2
Embodiment 3
Get No. 110 pearlstone: 1.0m 3, β CaSO 41/2H 2O:155kg, P42.5 ordinary Portland cement: 20kg, high calcium ash: 50kg, polypropylene fibre: 0.7kg, 80 purpose dicalcium powder 0.8kg and 100 purpose Paris white 0.7kg, methylcellulose gum 1.1kg and Vltra tears 0.9kg, model is: calcium sulphate retarder 2.0kg and the model of Retarden P are: the calcium sulphate retarder 2.0kg of SC, dodecyl water glass: 0.011kg, after adding water 320kg during use and fully stirring 10 minutes with mortar mixer, make gypsum base swelling perlite heat-insulating mortar, and test according to mortar and the dry shrinkage crack testing method of concrete that the Paulpkraai professor of above-mentioned St.George's state university is proposed, the cracking index value that records this gypsum base swelling perlite heat-insulating mortar is 2872mm 2
Embodiment 4
Get No. 120 pearlstone: 0.95m 3, β CaSO 41/2H 2O:150kg, P52.5 ordinary Portland cement: 19kg, I level flyash 20kg and high calcium ash 30kg, polypropylene fibre: 0.6kg, 85 purpose dicalcium powder 0.6kg and 95 purpose Paris white 0.8kg, methylcellulose gum 0.8kg and Vltra tears: 0.9kg, the calcium sulphate retarder 3.4kg of SC and dodecyl water glass: 0.0095kg, after adding water 300kg during use and fully stirring 10 minutes with mortar mixer, make gypsum base swelling perlite heat-insulating mortar, and test according to mortar and the dry shrinkage crack testing method of concrete that the Paulpkraai professor of above-mentioned St.George's state university is proposed, the cracking index value that records this gypsum base swelling perlite heat-insulating mortar is 2889mm 2
Embodiment 5
Get No. 130 pearlstone: 1.05m 3, β CaSO 41/2H 2O:160kg, P52.5 ordinary Portland cement: 21kg, I level flyash 20kg, II level flyash 20kg and high calcium ash 20kg, polypropylene fibre: 0.8kg, 90 purpose dicalcium powder 1.6kg, methylcellulose gum 2.3kg, model is: the calcium sulphate retarder 4.6kg of Retarden P and dodecyl water glass: 0.012kg, after adding water 310kg during use and fully stirring 10 minutes with mortar mixer, make gypsum base swelling perlite heat-insulating mortar, and test according to mortar and the dry shrinkage crack testing method of concrete that the Paulpkraai professor of above-mentioned St.George's state university is proposed, the cracking index value that records this gypsum base swelling perlite heat-insulating mortar is 2893mm 2
Embodiment 6
Get No. 70 pearlstone: 1m 3, β CaSO 41/2H 2O:150kg, P52.5 silicate cement: 20kg, I level flyash: 56kg, polypropylene fibre: 0.7kg, 80 purpose dicalcium powder: 1.5kg, methylcellulose gum: 2.2kg, model is: the calcium sulphate retarder of Retarden P: 4.4kg and dodecyl water glass: 0.011kg, after adding water 300kg during use and fully stirring 10 minutes with mortar mixer, make gypsum base swelling perlite heat-insulating mortar, and test according to mortar and the dry shrinkage crack testing method of concrete that the Paulpkraai professor of above-mentioned St.George's state university is proposed, the cracking index value that records this gypsum base swelling perlite heat-insulating mortar is 2886mm 2
Embodiment 7
Get pearlstone: 1m No. 150 3, β CaSO 41/2H 2O:150kg, P42.5 ordinary Portland cement: 20kg, II level flyash: 56kg, polypropylene fibre: 0.7kg, 100 purpose Paris white: 1.8kg, Vltra tears: 2.2kg, model is the calcium sulphate retarder of SC: 4.4kg and dodecyl water glass: 0.011kg, after adding water 300kg during use and fully stirring 10 minutes with mortar mixer, make gypsum base swelling perlite heat-insulating mortar, and test according to mortar and the dry shrinkage crack testing method of concrete that the Paulpkraai professor of above-mentioned St.George's state university is proposed, the cracking index value that records this gypsum base swelling perlite heat-insulating mortar is 2773mm 2
Embodiment 8
Get pearlstone: 1m No. 90 3, β CaSO 41/2H 2O:150kg, P42.5 ordinary Portland cement: 20kg, high calcium ash: 56kg, polypropylene fibre: 0.7kg, 80 purpose dicalcium powder 0.5kg and 100 purpose Paris white: 1.0kg, methylcellulose gum 1.1kg and Vltra tears: 1.1kg, model is: calcium sulphate retarder 2.2kg and the model of Retarden P are: the calcium sulphate retarder of SC: 2.2kg, dodecyl water glass: 0.011kg, after adding water 300kg during use and fully stirring 10 minutes with mortar mixer, make gypsum base swelling perlite heat-insulating mortar, and test according to mortar and the dry shrinkage crack testing method of concrete that the Paulpkraai professor of above-mentioned St.George's state university is proposed, the cracking index value that records this gypsum base swelling perlite heat-insulating mortar is 2798mm 2
Embodiment 9
Get No. 120 pearlstone: 1m 3, β CaSO 41/2H 2O:150kg, P42.5 ordinary Portland cement: 20kg, I level flyash 18kg, II level flyash 18kg and high calcium ash 18kg, polypropylene fibre: 0.9kg, 85 purpose dicalcium powder 0.6kg and 100 purpose Paris white 0.6kg, methylcellulose gum 1.1kg and Vltra tears: 1.3kg, model is the calcium sulphate retarder 2.1 of Retarden P and calcium sulphate retarder 2.3kg and dodecyl water glass: the 0.011kg that model is SC, after adding water 300kg during use and fully stirring 10 minutes with mortar mixer, make gypsum base swelling perlite heat-insulating mortar, and test according to mortar and the dry shrinkage crack testing method of concrete that the Paulpkraai professor of above-mentioned St.George's state university is proposed, the cracking index value that records this gypsum base swelling perlite heat-insulating mortar is 2883mm 2
Bibliography
1. the king just weighs, and improves the research of EPS mortar heat retaining property and anticracking mortar splitting resistance, urban construction institute of Nanjing University of Technology master thesis, 2004 (6): 29-29
2. Xing Feng, chemiluminescence, Feng Naiqian etc. gram splits fast fiber reinforced concrete resistance to cleavage. matrix material journal .2002 (6): 120-124.

Claims (8)

1, a kind of gypsum base swelling perlite heat-insulating mortar dry powder, it is characterized in that each unit this heat-insulating mortar dry powder it form by the raw material of following component: pearlstone: 0.9～1.1m 3, β CaSO 41/2H 2O:145～165kg, ordinary Portland cement: 18～22kg, I level flyash and/or II level flyash and/or high calcium ash: 45～65kg, polypropylene fibre: 0.4～1kg, 80～100 purpose dicalcium powder and/or Paris white: 1.3～1.7kg, methylcellulose gum and/or Vltra tears: 1.5～2.5kg, calcium sulphate retarder: 3.0～5.0kg and dodecyl water glass: 0.008～0.013kg.
2, gypsum base swelling perlite heat-insulating mortar dry powder according to claim 1, it is characterized in that described each unit heat-insulating mortar dry powder it form by the raw material of following component: pearlstone: 0.9～1.1m 3, β CaSO 41/2H 2O:145～165kg, ordinary Portland cement: 18～22kg, I level flyash and/or II level flyash 45～65kg, polypropylene fibre: 0.4～1kg, 80～100 purpose dicalcium powder and/or Paris white: 1.3～1.7kg, methylcellulose gum and/or Vltra tears: 1.5～2.5kg, calcium sulphate retarder: 3.0～5.0kg and dodecyl water glass: 0.008～0.013kg.
3, gypsum base swelling perlite heat-insulating mortar dry powder according to claim 2, it is characterized in that described each unit heat-insulating mortar dry powder it form by the raw material of following component: pearlstone: 0.9～1.1m 3, β CaSO 41/2H 2O:145～165kg, ordinary Portland cement: 18～22kg, I level flyash/or II level flyash 45～65kg, polypropylene fibre: 0.4～1kg, 80～100 purpose dicalcium powder and/or Paris white: 1.3～1.7kg, methylcellulose gum and/or Vltra tears: 1.5～2.5kg, calcium sulphate retarder: 3.0～5.0kg and dodecyl water glass: 0.008～0.013kg.
4, gypsum base swelling perlite heat-insulating mortar dry powder according to claim 1, it is characterized in that each unit heat-insulating mortar dry powder it form by the raw material of following component: pearlstone: 1m 3, β CaSO 41/2H 2O:150kg, ordinary Portland cement: 20kg, I level flyash and/or II level flyash and/or high calcium ash: 56kg, polypropylene fibre: 0.7kg, 80～100 purpose dicalcium powder and/or Paris white: 1.5kg, methylcellulose gum and/or Vltra tears: 2.2kg, calcium sulphate retarder Retarden P and/or SC:4.4kg and dodecyl water glass: 0.011kg.
5, gypsum base swelling perlite heat-insulating mortar dry powder according to claim 1 is characterized in that described ordinary Portland cement is P52.5 silicate cement or P42.5 silicate cement.
6, gypsum base swelling perlite heat-insulating mortar dry powder according to claim 4 is characterized in that described ordinary Portland cement is the P52.5 silicate cement.
7, gypsum base swelling perlite heat-insulating mortar dry powder according to claim 1, it is characterized in that described calcium sulphate retarder is selected from model and is: the calcium sulphate retarder of Retarden P and/or model are: the calcium sulphate retarder of SC.
8, the using method of claim 1,2,3 or 4 described gypsum base swelling perlite heat-insulating mortar dry powders, it is characterized in that heat-insulating mortar dry powder with described each unit add water 280～330kg water and fully stir after get final product.
CNA200610038042XA 2006-01-26 2006-01-26 Gypsum base swelling perlite heat-insulating mortar dry powder and its usage method Pending CN1807337A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101480811B (en) * 2009-01-20 2010-12-22 穆思博 Method for producing pearlite insulation body
CN101245613B (en) * 2008-03-14 2011-08-31 上海中绿建材有限公司 Light mortar inside and outside combined exterior wall heat-preserving system
CN102173680A (en) * 2011-01-26 2011-09-07 公安部四川消防研究所 Heat-insulating energy-saving flame-retardant material for external wall
CN102505798A (en) * 2011-11-24 2012-06-20 厦门大学 Composite heat-insulating wallboard and preparation method thereof
CN102557542A (en) * 2011-12-22 2012-07-11 长安大学 Inorganic fiber reinforced cement heat preservation product
CN103058594A (en) * 2013-01-06 2013-04-24 韩兆云 Application of fly ash in construction mortar
CN103242021A (en) * 2013-05-30 2013-08-14 长沙归一建材科技有限公司 Gypsum-cement heat insulation masonry mortar
CN103274642A (en) * 2013-05-13 2013-09-04 浙江宏成建设集团有限公司 Inorganic vitrified bead outer wall anti-crack mortar
CN104163592A (en) * 2014-07-14 2014-11-26 池州市崇源节能建筑材料有限公司 High performance composite insulation mortar and preparation method thereof
CN104355586A (en) * 2014-10-08 2015-02-18 合肥向荣环保科技有限公司 Moisture-proof plasterboard
CN106193493A (en) * 2015-04-30 2016-12-07 孙高雷 A kind of production method of soft decorative panel for building

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101245613B (en) * 2008-03-14 2011-08-31 上海中绿建材有限公司 Light mortar inside and outside combined exterior wall heat-preserving system
CN101480811B (en) * 2009-01-20 2010-12-22 穆思博 Method for producing pearlite insulation body
CN102173680B (en) * 2011-01-26 2014-10-22 公安部四川消防研究所 Heat-insulating energy-saving flame-retardant material for external wall
CN102173680A (en) * 2011-01-26 2011-09-07 公安部四川消防研究所 Heat-insulating energy-saving flame-retardant material for external wall
CN102505798A (en) * 2011-11-24 2012-06-20 厦门大学 Composite heat-insulating wallboard and preparation method thereof
CN102505798B (en) * 2011-11-24 2014-05-14 厦门大学 Composite heat-insulating wallboard and preparation method thereof
CN102557542A (en) * 2011-12-22 2012-07-11 长安大学 Inorganic fiber reinforced cement heat preservation product
CN103058594A (en) * 2013-01-06 2013-04-24 韩兆云 Application of fly ash in construction mortar
CN103274642A (en) * 2013-05-13 2013-09-04 浙江宏成建设集团有限公司 Inorganic vitrified bead outer wall anti-crack mortar
CN103242021A (en) * 2013-05-30 2013-08-14 长沙归一建材科技有限公司 Gypsum-cement heat insulation masonry mortar
CN103242021B (en) * 2013-05-30 2015-12-23 长沙归一建材科技有限公司 A kind of Gypsum-cement heat insulation masonry mortar
CN104163592A (en) * 2014-07-14 2014-11-26 池州市崇源节能建筑材料有限公司 High performance composite insulation mortar and preparation method thereof
CN104355586A (en) * 2014-10-08 2015-02-18 合肥向荣环保科技有限公司 Moisture-proof plasterboard
CN106193493A (en) * 2015-04-30 2016-12-07 孙高雷 A kind of production method of soft decorative panel for building
CN106193493B (en) * 2015-04-30 2018-06-15 宁波恒进自动化技术有限公司 A kind of production method of soft decorative panel for building

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