material: low carbon steel grade: G100 G200 G500 G1000 diameter:2-50.8mm Products nameTOP G200 1/8" high quality and low price steel balls made in china Brand namezhongruiSize 2mm-60mmmaterialAISI1010 1015 1045 1085 GradeG100-G1000 Color argentQuality standardISO9001:2008Delivery datewithin 25 days Applicationindustry, automobile ,motorcycle ,bicycle ,bearings, medical equipment, instrumentation, ...