... EN10143/GBT 2518-2008(16)SubstrateHot dip galvanized steel (HDGI), Prepanited galvanized steel, Prepainted galvalume steel, Aluzinc steel, Aluminium steel(17)Surface ProtectionPE, PVDF, HDP, ... , Chromated , Bright Finished, Spangle, Fingerprint Resistance.Types of Corrugated steel roofing sheet Detail Dates Feature of roof tiles(1)strong ... copy of B/L or L/C at sight for first order, then D/P,D/A ect. ...