... ETC. Specificationswe mainly supply GI,GL,PPGI,PPGL,CORRAGATED STEEL SHEET,COMPOSITE BOARD,LIP CHANNEL,ETCweight: 10-14kg/m2, equal to 1 ... .8mm Thickness of sandwich:40-300mm Length:according to customers' requirements Width:wall board:1200,1150,1000,950mm rooring board:950mm Heat insulation ...