high frequency oil cylinder 1)26year experience of cylinder 2)ID:40-1000mm 3)piston Diameter30-900 4)pressure:6.3-25M high frequency oil cylinder 26YEARS experience Wood mechanical pressure machine special piston cylinder, suitable for three plywood, chipboard, fiber board, compound floor in bamboo board, board, cavity forming on the pressure in use, working pressure is commonly 26 MPa, piston ...