1. The material of piston rod is 45# steel or 35GrMo. It's used with piston together. And the size of core is included 1 5/8" and 1 1/2''. 2. Piston rods are forged using alloy steel. The intention of products is improved after heat treatment. 3. The surface of product is zincification, nickel-plate, and plating with decorating chrome. 4. After numerical control processing, the products can meet various demands of clients.
