Carbon Steel Ball, Stainless Steel Ball manufacturer / supplier in China, offering 15/16" 23.8125mm AISI 440 440c 420 420c Stainless Steel Balls G20-G1000 Steel Ball, 316 Stainless Steel Ball 6.0mm 6.35mm 1/4''6.5mm 6.746mm 17/64'' G500 for Valve, Nail Polish Steel Ball, Carbon Steel Ball 16.00mm 16.668mm 21/32'' for Guide Rail, Screw Rod, Auto Parts Steel Ball and so on.