... machine is mainly used for bending flat steel, square steel, round steel, angle steel, "H" steel,etc. W24 Section ... angle steel, "H" shape steel, U-shape steel, square tube, rectangular tube, round tube, etc. It is widely used in boiler, ship building, ... rollers, support rollers, transmission system, hydraulic system, molds, etc. Tube rolling machine,tube bending machine,proflie rolling machine