AAC panel is a kind of lightweight materials with superior performance and good insulation. The raw materials is cement, lime, aluminum powder, silica sand and so on. Produce in high temperature, high pressure and steam curing. ALC panel producing is as the same as AAC. The difference is the ALC contains steel mesh in it. The mesh is adopting two-way and welded steel reinforcement. It’s processed by special antirust liquid. The concrete slab is a new building materials with superior performance.