304 stainless steel ball 1.Material:304 stainless steel 2.Dia:0.3mm to ... 50.8mm 3.Grade:G10-G1000 304 Stainless Steel Ball SpecificationMaterial:304 stainless steelDia:0.3mm to 50.8mmGrade:G10 ... polish,motors,switches,electic irons,washing machines,refrigerators,air conditioners,medicine,auto parts,bearings,instruments,bottles Chemical ComponentsC:0.08%max ...