ERW Steel Pipe 2)SIZE:21.3--1250mm 3)Thickness:1.8-- ... .ASTM-A53,BS1387-85,JIS-G3444,GB/T3091-2001 CommodityERW steel pipeSpecification21.3-1250mm, 1.8-14.27mmMaterialQ195,Q215,Q345,20 ... 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 ...