we mainly supply Color Steel composite board ,and mainly used for Makeshift House\Temporary workshop ... ETC. Specificationswe mainly supply GI,GL,PPGI,PPGL,CORRAGATED STEEL SHEET,COMPOSITE BOARD,LIP CHANNEL,ETCweight: 10-14kg/m2, equal ... Heat insulation and preservation.Thermal conductivity: 0.035W/Mk Color Steel composite board