Carbon Steel Ball, Stainless Steel Ball manufacturer / supplier in China, offering 20.8mm Stainless/304 (L) /316 (L) /420 (C) /440 (C) Steel Ball for Bearing Parts Steel Ball, 316/316L/420/420c Stainless Steel Ball G20-G1000 for Bearings, Electrical, Equipment Steel Ball, G25 3.175mm 3.969mm 7.938mm Precision Chrome Steel Ball Use for Bearing Autoparts Steel Ball and so on.