... and small gross packing we are Taian zhong rui steel balls co,ltd,one of the biggest steel ball manufacturer in ... shan dong province,we are specialzing in making carbon steel balls(AISI1010-1015,AISI1045,AISI1085 G28-G1000,2MM-60MM),and chrome ... .through several years development,quality of TAIAN ZHONG RUI steel balls has approved by many countries,it is growing stronger and ...