Stainless Steel Ball, Carbon Steel Ball, Bearing Steel Ball manufacturer / supplier in China, offering Custom Hollow Stainless Steel Punch Ball – Decorative Metal Sphere, Stainless Steel Solid Balls 2– 20 mm Widely Used in Valves, Bearings, Nozzles, Precision Steel Balls 8-12mm High Roundness and Strong Pressure Resistance Suitable for Automotive Machinery and so on.