square pipe: 20*20- 600*600, 20*30-300*700mm
thickness wall: 0.6--25 mm
Round pipe: 21.3--1420mm
thickmess:0.6--25mm
Standard: EN 10210, EN 10219, ASTM A500, JIS G3466,
Material: S355JR, S235JR, S355JO, S355J2