... 5mm-9.5mm or 3.8-9.0(JIS) Steel U Channel 1. Specification:5#-32#; 75*40-150 ... 5mm-9.5mm or 3.8-9.0(JIS)4. Steel grade: EN ST37-2, ST52, S235JR, S355JR JIS SS330 ... ASTM A36, A572 Gr50 GB Q235-3455. Application: shipbuilding, steel tower, construction, electric utility industry,etc...If any questions, please ... feel free to contact us on sale7 at sino-steel.net! My name is Tina, your inquiries will be ...