... BS1387-85,JIS-G3444,GB/T3091-2001,etc. CommodityERW steel pipe Specification21.3-457.2mm, 1.8-14.27mm MaterialQ195, ... ,321,316,3161 LengthAs per client requirement UsagePetrol,gas,water pipe,construction,chimney pot Processing techniqueThreading,coupling,necking,punching .etc. ... customers requirements BesidesWe also can oil and paint the steel pipe We can do special oeders as your request provide other ...