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This kind of material has the characteristics of not rotting, not burning, high temperature and so on For example: asbestos, diatomaceous earth, perlite, glass fiber, foam glass concrete, calcium silicate and so on Pu cold under the cold material used organic insulation materials, such materials have a very small thermal conductivity, low temperature, flammable and so on For example: polystyrene foam, polyvinyl chloride foam, polyurethane foam, cork and so on According to the shape can be divided into porous insulation tears orbital material, fibrous adiabatic tears orbital material, powder insulation and layered insulation materials four Porous insulation material, also known as foam insulation material, with a light weight, good insulation properties, good elasticity, dimensional stability, poor stability and so on Mainly foam, foam glass, foam rubber, calcium silicate, light refractories and so on Fibrous insulating material can be divided into organic fiber, inorganic fiber, metal fiber and composite fiber In the industry for the insulation of the orbital material is mainly inorganic fibers, the most widely used fiber is asbestos, rock wool, glass wool, aluminum silicate ceramic fiber, crystalline alumina fiber 窢 ridge to promote But the debt and so on Powder insulation materials are mainly diatomaceous earth, expanded perlite and its products These materials are rich in raw materials, cheap, is the construction and thermal equipment on the application of a wide range of highly efficient insulation materials
Development Trend of Aluminum Alloy Cabinet Industry in Small and Medium - sized Cities
The thermal insulation performance of these materials, the advantages and disadvantages, mainly by the material heat conduction performance level (the index for the thermal conductivity) decision
Why all the ultra-pole all use aluminum alloy shell?
Flexible waterproof on the market. Choose a little bit of expensive price.
There are those children's roller shoes is one of the aluminum alloy stent,
Try to use other fireproof materials, do not think there is no hidden place on the use of such materials can be burned
What is the pros and cons of the cast iron engine and the aluminum alloy engine?
Filling system is also used to close the molecular structure, you can put an end to the condensation of water vapor
Clothes rack stainless steel is good or good aluminum
The insulation material: silicate insulation material ceramic insulation material powder polystyrene particles steel mesh mining cement foam board (Shu music board) extruded plate XPS rigid polyurethane spray coating, Foam foam board foam cement Second, the roofing material: ceramic insulation board xps extruded board EPS foam board perlite and perlite brick vermiculite and vermiculite brick hair Silicone, polystyrene foam, glass wool, rock wool four, steel materials: polystyrene, extruded board, polyurethane (PVC), polyurethane, Plate, glass wool felt and so on Five inorganic insulation material Fu Dan Dian Yu Yu Fei Dian ten East ginger material: foam cement, inorganic reactive wall insulation materials
What is better for mosquito nets? (Plastic? Aluminum alloy or other)
Climb up to big brother, very tiring. I now have an occupational disease. The joints are always hurt.
The store said that if you buy aluminum are imitation goods, is that so? Please professional answer, thank you more
Note that there is generally a middle of the waist, that is, protective railing General scaffolding step is 15 meters, there are 18 meters, it is decoration scaffolding Return to the topic, know what step is to understand the top step, is the scaffolding scaffolding the last step General cantilevered scaffolding will involve the top of the top step need to take a long pole, because there will be a pole to prevent the next layer of cantilevered arrangement So the need for short steel pipe in the top step to use long