Naveen Hydrocontrols offers Pressure Die to Keep Mendrel in Linear Position. Naveen Hydrocontrols is an ISO 9001-2000 certified company. Naveen Hydrocontrols ventured in to manufacturing hydraulic cylinders power packs and reconditioning of pipe bending machine, presses etc. Pressure Die to Keep Mendrel in Linear Position keeps the tube against the bend die through out the process of bending. It also keeps the Mandrel in linear position and maintains a straight tube between tangent point of bend and ensure dent free bending.