Standard:ASTM, BS, JIS, DIN, GB,ASTM A53-2007, BS 1387, JIS G3444-2006, DIN EN 10025, GB/T 3091-2001 Grade Group:10#-45#, A53-A369, Q195-Q345 Grade:20#, A53(A,B), Q235, Q345, Q195, Q215 Thickness:1.2 - 20 mm Section Shape:Roud / Sqaure/ Rectangular Place of Origin: China (Mainland) Secondary Or Not:Non-secondary Application:Structure Pipe Technique:ERW Certification:ISO SGS CE Surface Treatment:Black/ Galvanized/ Oiled Special Pipe:Thick Wall Pipe Alloy Or Not:Non-alloy Type:Welded ERW Commodity:Galvanized steel pipe Out diameter:26.9mm to310mm length:up to 12m Material:Q195-Q345 Package:Sea-worthy Package Marks:Customized Shape:Round / Square / Rectangula