1,mild steel 2,10-15days delivery time 3,15-15mm-200*200mm 4,ISO.BV.QC certificate Quick Details Standard: BS, JIS, GB, DIN, ASTM, APIStandard: BS 1387, BS 1139, BS 6363, JIS C8305-...Grade: 10#-45#, Cr-Mo alloy, Mn-V alloy, 10MoWV...Grade: 10#, 20#, 15CrMo, 12Cr1MoV, 10CrMo910, C...Thickness: 0.6 - 15 mmSection Shape: SquareOuter Diameter: 10*10-500*500Place of Origin: Tianjin China (Mainland) ...