... ,10MoWVNb,A106B,12CrMo,15CrMo,20CrMo,42CrMo,12Cr1Mov,10CrMo910,A355P22,STFA25 and so onStandards 1.GB: GB5310-95; GB8087-1999; GB8163 ... mechanical polished3.black paint on the face4.anti-rust oil and caps on both ends5.galvanizedUsage Range1.structral pipe2.oil or gas ... uses we can produce according to customer requirementpacking1.Inner Packing:Caps at both ends, steel strong trips on every bundle2. ...