GI(hot-dip) GI coilThickness:0.21-4.0mmWidth:600-1500mmID:508, ... 02 to +0.01mmTolerance of width:+_ 2mmWeight of coil:1-12TBase material:cold rolled steel,hot rolled steelSurface structure ... add oiled,untreated,anti-fingerprint,phosphate,etc.Steel grade:SGCC,SGCD1,SGCD2,DX51D,DX52D,DX53D,S220GD,S250GD,S280GD,S350GDStandard: ... for stamping,for deep drawing,for structural components,etc. GI coil