... ball Production nameG28,G40,G100-G1000 high precision bearing steel balls size2MM-60MMGradeG28,G40,G80,G100,G200, ... 1β--10001/16β~1β--Applications :1,C10-C15 balls are case-hardened only(surface heat treatment),low ... carbon steel balls offer considerable saving in all those applications which ... .Any further Information,Plz contact us! High Quality Bearing Steel Balls