... bending Dia. mm550Outer-bending of angle steel Max.section 80×80×8Min bending dia. mm1000Min section 30×30×3Min bending ... relief valve,doing empty load start,down pressure adjustment,over load unloading before turning on the machine,observating adjusting ... cabinet,every operating control is showing by figurative symbols,and fitting with movable operation console. The control systerm is composed by ...