seamless square pipe

Features: 1) Dimensions: 20mm 500mm Thickness: 2mm 25mm Length: <13m 2) Material: Q235, Q345, 20#, ST37,ST44,ST52.,ASTM A53, ASTM A 106,STKR490 3Standards: JIS G 3466 , DIN EN 10210, DIN EN10219, ASTM A500, GB/T 3094-2000, GB/T 6728-2002 4)Use: construction structure, machinery, container , hall structure, solar stent, offshore oil field, sea trestle , motorcar cassis, airport structure, shipbuilding, automotive parts and so on. 5) Packing: Square shape bundles wrapped with strong steel strip or according to customers' requests 6) Surface: oiled or black painted to prevent rust 7) OEM available