1. Stainless steel wheel hub for auto adopts silica sol process and lost wax casting technology. This process has small error and the size obtained will be more accurate. 2. Stainless steel wheel hub for auto uses 304/316 stainless steel, which has the characteristics of corrosion resistance, wear resistance and high strength. 3. The surface of stainless steel wheel hub for auto is sandblasted to make the product surface uniform and beautiful, while improving wear resistance and corrosion resistance.