... square seamless steel pipe 1.Cold drawn 2.different shapes, high quality 3 Material: carbon steel& alloy steel Products DetailesName square seamless steel pipeTechiqueCold ... 16Mn, A53 GR.B,A106 Gr.B, ST45, CK45Alloy steel of 20Cr, 40Cr, 20CrMnTi, 20CrMo, 42CrMo,40MnMoV, Material ... painted to prevent rustInner PackingCaps at both ends, steel strong trips on every bundleOuter PackingPE Wrapping outsideMin ...