... 4.Length:1-6m,or as require 5.Grade:10#-45#,Q195-Q345 D shape welded steel pipe ProductionERW welded tube Specification ... ,BS EN 10217,GB/T8162,GB/8163,ASTM A106-2006 Grade 10#, 20#, 45#,Q235, Q345, Q195Length1-6m, or as customers ... , please contact us. We look forward to working with you. D shaped stainless welded steel pipe, ERW welded tube