1/4" carbon steel ball for bearings 1)High hardness 2)Good wear resistance 3)NO ... 100% original Quick Details Place of Origin: Jiangsu China (Mainland)Brand Name: SAIGEModel Number: 6.35mmApplication: cement,mine,power station,chemical ... :25-30 days after order confirmedProduct Description a) application hardware, bearings, guide sleeves, guide rails, grinding materials, micro mists, polishing, ...