Steel Ball Manufacturing Factory is specialized in producing various kinds of balls with material of GCr15 GCr15SiMn stainless steel copper etc. It covers 15340 square meters with 336 sets of production and auxiliary equipments 10 sets of precision test equipments. The range of diameter is 3.175mm to 152mm; the accuracy grade is from G5 to G100 and the vibration value per ball is from Z1 to Z5. The ball processing dimensions and types can meet customers’ personal requirements which are widely used in the fields such as agricultural machinery mines metallurgy transport aviation etc.