... 200mm 3.Grade:G10 to G1000 Steel Ball Specification of our steel ball 1.Material:carbon steel,stainless steel ,bearing ... Details: Inner package:25kg/plastic bags or small box Outer package: 4 plastic bags or small boxes in one export ... export carton6.Application:bearing,bicycle,motorcycle,automobile,rail,universal ball,bags,electronic industry,grinding other media,medical equipment,aerospace;perfume ...