Carbon Steel Ball, Stainless Steel Ball, Chrome Steel Ball manufacturer / supplier in China, offering Stainless Steel 420c Ball for Toys 7.14mm 9/32 Inch G1000, AISI420/Ss420 Stainless Steel Ball 2.0mm G100 Steel Balls 1.588mm 1/16 Inch, Soft Ball Solid Ball Unhardend for Bicycle Parts and so on.