low carbon steel ball Material:AISI1010 1015 Size 0.5-25.4mm Grade 100-1000 Detailed product informationlow carbon steel ballMaterial:AISI1010 1015Size 0.5-25.4mmGrade 100-1000 Production nameG100-G1000 carbon steel balls made in China size1/4",3/16',5/32",1/8",5/16",7/32"GradeG100,G200,G500,G1000,G2000HRC58-62hrcQuality certificateISO 9001:2008/SGS test report/ROHS reportPacking1, 25kg/carton ...