Stainless Steel Ball SS440C, SS420, SS316L/316, SS304 Model Number2mm-50mmApplicationtoy, anit-rust purposeShapeshperialMaterialsteelDimensions2mm-50mmChemical CompositionsteelCertificationISO9001Stainless Steel BallFeatures:1) Materials: SS440C,SS 420, SS316,SS 3042) Grades: G100 ~ G10003) Complies with the China GB308-2002 and ABMA Std.10A-2001, JIS, DIN4) Applied in all kinds of exactitude ...