... :ISO9001:2008 4.G100 G200 G500 G1000 G2000 Carbon steel ball Production nameCarbon steel ball size2.381mm-25.4mmGradeG100 G200 G500 G1000 ... Interval(μm)Preferred Gauge(μm)101/16”~1”1-10,…..,-1,0,+1,…..,+9281/16”~1”2.00-12,…..,- ... .00-25,…..,-5,0,+5,…..,+251001/16”~1”10.00-40,…..,-10,0,+10,…..,+402001/16”~1”15.00-60,…..,-15,0 ... and gas etc.Any further Information,Plz contact us! Carbon steel ball