profile pvc cylinder extruded parts for cincinnati TITAN45P

Specifications of standard for  profile pvc cylinder extruded parts for cincinnati TITAN45P : 45/97,51/105, 55/110, 65/132, 80/156, 80/172, 92/188. Advantages of  profile pvc cylinder extruded parts for cincinnati TITAN45P : 1.Advanced Nitriding Technology 2.Anti-corrosion and Wear-resisting Duplex Metal Spraying Technoloy 3. we uses special alloy powders being sprayed and welded on the screw's ridge,and uses    different alloy and welding methods for the screw of different functions. ...