1.Name:bearing steel ball2.Size(diameter):0.5-50mm3.Grades:G10-G10004.Material:bearing steel(GCr15/GCr15simn)/carbon steel(10/15/45/85)/stainless steel(OCr17Ni9/3Cr13/9Cr18)/chrome steel/nikel steel/bicycle steel5.Hardness:HRC42-606.standard:GB308-20027.Other standard:ISO3209-1998/AFBMA 10-1983/DIN5401/NF9.Function:applied in all kinds of exactitude machines,stainless bearings,valve balls,chemical and military related application10.Feature:high hardness,non-broken,anti-abrasive,anti-crush11.Advantage:about20 years production experience,high quality with competing prices;the perfect after-sales service12.special specifications can be produced according to customers'requirements!