... .: 2.5-8Mt Zn Coating: 60-350 galvanized steel coil sgch jis 3302 Technical Data Chemical CompositionGRADECSiMnPSTiSGCC/DX51D+Z ... 280≥360≥18S320GD≥320≥390≥17S350GD≥350≥420≥16 galvanized steel coil sgch jis 3302 Application(1)Guardrails, roofing, ventilation ... , SGCC, SECC, SGLC, SPCC, SPCD, SPCE, DX51D, DX51D+Z, SGH340+Z, S350GD+Z, Electrical Silicon Steel, etc. coils/sheets, galvanized steel pipe, etc. ...