... Material:stainless steel ball, size:0.1--12.7mm,grade:G5-G1000 packing:bulk industries packig and small packing 1)bearing ball Material:Carbon steel ball, ... .1mm,grade:G40-G1000Material:Chrome steel ball,size:7.144--15.875mm,grade:G16--G40Material: Stainless steel ball(304,316,316L,420,440, ... )leading time:15-30days as different4)we have produced steel ball for 13years.so we can control good quality and ...