... DX53D+Z, S250GD-S550GD;ASTM A653-CS-B, SS255-SS550(4) Zinc Coating: Z40g/m2~Z500g/m2 (both side ... AZ, DX53D+AZ, S250-S550ASTM A792M CS-B, SS255-SS550(4) AZ Coating: AZ50~AZ185g/m23. Prepainted Galvanized Steel ... , CGC340-570, (G550)ASTM A755M CS-B, SS255-SS550(4) Zinc Coating: Z40g/m2~Z500g/m2 (both side ... , CGLC340-570, (G550);ASTM A755M CS-B, SS255-SS550(4) AZ Coating: AZ50~AZ185g/m2 (both side total ...