... ,SGCC,SGCH,SGC340(15)StandardASTM A653M-04/JIS G3312/DIN EN10143/GBT 2518-2008(16)SubstrateHot dip galvanized steel (HDGI), Prepanited galvanized steel, Prepainted galvalume steel ... )Surface TreatmentGalvanized, Chromated , Bright Finished, Spangle, Fingerprint Resistance.Types of Corrugated steel roofing sheet Detail Dates Feature of roof tiles(1)strong strength(2 ...