Product name:Tow ball, Hitch Ball Material:40Cr, 42CrMo, GGG50, ductile iron, alloy steel Production process:Hot die forging, sand casting Unit Weight: 0.1kg-100kg, 0.2lbs-200lbs Size: According to customer drawing Customizable or not: Yes Certificate: ISO9001:2008 Inspection report: Dimension report. Material report including chemical contents, tensile strength, yield strength and hardness. X-ray test report, Ultrasonic test report and Magnetic particle test available upon request. Available service: OEM, Design optimization, precision machining, heat treatment, cnc machining, milling, drilling. Painting, powder coating, electroless nickel plating. Zinc Plating, E-coating. HDG, hot galvanizing Packing: Carton, plywood cases, pallets Application:Installed in the rear of the car, used to drag RV, yacht, beach motorcycle, RV, bicycle, storage box, etc Scope of application:Fasteners for mechanical industry Applicable objects:vehicle Origin: China