ERW Steel Pipe 2)SIZE:21 ... 85,JIS-G3444,GB/T3091-2001 CommodityERW steel pipeSpecification21.3-1250mm, 1.8-14 ... the steel pipeWe can do special oeders as your requestprovide other steel pipe: cold rolled,hot rolled,hot dipped,ERW pipe,etc.We sincerely hope to ... establish long-term business relationship with you. ERW Steel Pipe ...