APPLICATIONGRADESTANDARDSIZE(mm)
Square Hollow SectionQ235B, Q345B, S235JR/JO, S355JRH/JOH/J2H, Gr.B, SS400, STK 490GB/T6728-2017, GB/T3094-2012, EN10210, EN10219, ASTM A106/A500, JIS G346615mm X 15mm—600mm X 600mm
Rectangular Hollow SectionQ235B, Q345B, S235JR/JO, S355JRH/JOH/J2H, Gr.B, SS400, STK 490GB/T6728-2017, GB/T3094-2012, EN10210, EN10219, ASTM A106/A500, JIS G346620mm X 10mm—500mm X 300mm