1)welded pipe 2)SIZE:21.3--1250mm 3)Thickness:1.8--60mm 4)API5L.ASTM-A53,BS1387- ... etc.10#,20#,35#,#45,27SiMn,16Mn(Q345B C D E),20G,12Cr1MoVG,12CrMo,T91,P91,T9 ... 321,316,3161LengthAs per client requirementUsagePetrol,gas,water pipe,construction,chimney potProcessing techniqueThreading,coupling,necking,punching . ... etc.Payment term30%T/T and 70%L/C or negotiationOr 100% L/CDelivery timeWithin 30 working ...