size:5/32"(3.969mm) material:low carbon steel Grade:G1000 Packing:25kg/polybag packing and small gross packing ... in shan dong province,we are specialzing in making carbon steel balls(AISI1010-1015,AISI1045,AISI1085 G28-G1000,2MM-60MM),and ... 1996.through several years development,quality of TAIAN ZHONG RUI steel balls has approved by many countries,it is growing stronger ...