hdg,ppgi,gl,gi,ga,colour coated steel sheet,coil, galvanized steel coil hot-dipped galvanized steel sheet Galvanized steel sheets/coils Prime or non-prime quality ... PPGI is prepainted , also known as precoated steel, coil coated steel, color coated steel etc.A galvanised steel sheet in form is cleaned, pretreated, ... section and edge will cause dent and scratches.thanks HDG,GL,PPGI,GA,GI steel coil