... Specificationswe mainly supply GI,GL,PPGI,PPGL,CORRAGATED STEEL SHEET,COMPOSITE BOARD,LIP CHANNEL,ETCweight: 10-14kg/m2, equal to 1/30 ... customers' requirements Width:wall board:1200,1150,1000,950mm roofing board:950mm Heat insulation and preservation.Thermal conductivity: 0.035W/Mk Steel composite board