... /2000 4.Zinc coating:60-275 5.ISO9001 DX51D galvanized steel rolls 1.DX51D galvanized steel rolls 2.Thickness:0.5-3mm ... , 100g, 120g, 140g,180g, 200g, 250g, 275gstandardASTM, AISI, DIN, GBmaterialSGCC,DC51D,DX51D,DX52D,,SGCD,Q195,Q235,SGHC,DX54D, S350 GD,S450 GD ...