... shapes, high quality 3 Material: carbon steel& alloy steel Products DetailesName square seamless steel pipeTechiqueCold Drawn/cold rolledStandard GB/T8162,GB ... ,16Mn, A53 GR.B,A106 Gr.B, ST45, CK45Alloy steel of 20Cr, 40Cr, 20CrMnTi, 20CrMo, 42CrMo,40MnMoV, Material ... hoof, hexagonal,rectangular and squaresurfaceOiled or Black painted to prevent rustInner PackingCaps at both ends, steel strong trips on ...