material:stainless steel ball AISI316 grade;g100 hrc:58-63 size:1/ ... 16",3/8",7/16",1/2" main products :carbon steel balls (AISI1010-1015,AISI1045,AISI1085,G40-G1000,2mm-60mm),chrome ... steel balls(AISI52100 G10-G1000,1mm-60mm)stainless steel balls(AISI304,316,420,440 G100 ... term:FOB,CFR,CIFProduct and Packing picture: g100 AISI420C stainless steel ballsmade in china