Material:Q235,Q195,Q345 Brand name:RF Finished:black iron,HDG,spray paint thickness:0.5mm to 15mm Main ProductsZ ... manufacture as you requestSurface Treatmenthot dipped galvanized,electrogalvanizing,spray paintMateriaQ235,Q195,Q345Surface Treatment:hot dipped galvanized,electrogalvanizing,spray paint JIS galvanized iron U channel