steel pipe ,tube 1.Standard:BS,ASTM,GB/T,DIN 2.Material:Q195-Q345 10#,20#,45#, ... :21.3-2020mm 4.W.T:1.0-16.3 Steel pipe.tubeOur products strictly according to ISO9001 international quality system authentication ... customers requiresPackingIn bundles, with hexagonal water proof plastic tarpaulin cover. steel tags ASTM A795 erw carbon steel pipe for fire protect