Pressure, pressure-resistant rupture, sealing, vacuum resistance, drawing power, of bending, and the outer layer peeling, out of petrol, petrol through sexual sealed ozone resistance, resistance of combustion, heat of return

High pressure oil pipe is designed with guard sleeve and washer.It is made by 20A, 20B cold drawn seamless steel pipe. The product testing pressure: 49.0MPa for qualified product and 58.8MPa for first level prouduct are tested for one minute without any leakage and permanent deformation.