The piston rods, intermediate rods, and middle rods produced by our company are cast from alloy steel and undergo heat treatment to improve their strength. The products are processed by CNC and have a surface treatment of galvanized decorative chromium, which can meet different customer requirements. The piston rods of the three cylinder mud pump are made of alloy steel material and undergo strict heat treatment and mechanical processing. The models and specifications are complete, and the surface can be galvanized or blackened. The piston rods of the double cylinder mud pump have a corrosion-resistant, high-density, and low wear surface, reducing the deformation of the sealing packing and extending the service life of the sealing sleeve and piston top sealing ring. This piston rod is also equipped with sturdy and durable nuts.