General specification 4000*1200*20mm Fire resistance, thermal insulation, sound insulation, adiabatic, non-toxic, acid-proof, compression, qualitative light, easy installation, etc. Meet international standards of flame retardant B1 extremely outstanding performance, fire.Can be widely applied in bazaar, supermarket, restaurant, hotel, gymnasium, workshop, airport, hospital, food warehouse, and so on.The central air conditioning system is preferred. Technological numbers Density 60-70kg/m3 Thermal conductivity 0.22W/(m.k) Oxygen index 42% Smoke density(SDR) 3 The burning scale foam fire-retardant B1 level, sheet non-combustible A1(The European Union) Water absorption 3.7% Compressive strength 1.44Mpa Flexural stength 1.7Mpa Operating temperature -108°C-150°C