ERW Pipe: Φ48-610mm ,wall thickness :2.5-16mm 
                口30 * 30-800 * 800mm, thickness 2.5-30mm
                口50 * 30-800 * 300mm, thickness 2.5-30mm
Implementation of the standards: EN10210 \ EN10219: S235JRH \ S275J2H \ S355JOH \ S355J2H
ASTM A500: A \ B \ C \ D
JIS G3466 STKR: 400 \ 490
GB/T6728-2012 \ GB/T3094-2012: Q235B \ Q345B \ Q345D

Galvanized square pipe / rectangular tube
Welded tube
Seamless tube
Profiled steel tube