1) Made of AISI **0 2) Size:0.5mm**5.4mm 3) Different grades:G*0
G*0, G**0, G**0, G***0. 4) Certificate:ISO****2, TS*****9 5)
Hardness:Over HRC *2. 6) Applied in all kinds of exactitude
machines, bearings, ball screws, linear motion guides, automobile
parts, chemical and food processing, 7) This steel ball is a common
stainless steel ball, it has general rust resistence, better
hardness, and reasonable price.