Sandwich Panel & Porta Cabin Production process adopts the Al-Zn Alloy color coated steel sheet as surface board, and the core material is the self-wxtinguishing closed cell polystyrene foam, It is a kind of high- strength composited buildings materials, and it was formed in the automated continuous molding machine, by combining the pressed Al-Zn Alloy color coated steel with high strength adhesives. The Sandwich Panel is featured with temperature keeping, hot & sound insulation, anti water and fire resistant. It is widely used as the wall or roof insulation for Power Plant, Cold-storage, Poultry Firm, Hatchary, Pharmaceutical, Industrial Workshop, Commercial Building, public Building etc.