... . Cnc system cotrolling 4 .Iso Hydraulic profile bending machine (metal process machinery) One,Brief introductionIt is a Curve-down 3 ... steel, flat steel, square steel, channel, steel, circle steel, pipe and so on. The machine is compact structure, reliable work ... is used in oil, chemical, producing ship, water and electricity, metal structure ,machinery and manufacturing and so on.Two,Main technology ...