1.standard:BS, GB, ASME, ASTM,DIN,ASNI 2.material:Q195,Q215,Q235A/B, ... , Q215, Q235A,B, Q345, ST37-ST52 GR.B A106 ,A53 X42-X70,0Cr13,1Cr17,00Cr19Ni11,1Cr18Ni9,0Cr18Ni11Nb,16Mn,L245 ... X80 and so onStandardBS, GB, ASME, ASTM,DIN,ASNIUsageUsed For Pipeline Casing Pipe And Liquid Or StructureEndsPlain Ends Or Threaded ... ShipmentQingdao ,Tianjin, or other ports of China Q345 Steel Seamless Pipe lowest price