Our company (china shandong huamin steel ball joint-stock co., ltd) is one of the biggest manufacturers and exporters of grinding steel balls in china. Founded in 1986, annual production capacity of several kinds of grinding steel balls (main including: new type of high efficiency alloy forging steel ball, rcab new material forging steel balls, high chrome casting iron balls, low chrome casting iron balls.) is 50000 ton (dia20mm-dia150mm), and exports to more than 20 countries and areas in the world such as japan , korea, canada, south-africa, usa etc, and has obtained a high reputations from the customers. We have got the quality system certificate iso9001:2000 and environment quality system certificate iso14000. Size: dia20mm to dia150mm; Production capacity: 50000ton/year Characteristics: high hardness, good wear resistance, no breakage, even wearing. Applied field: mines, cement plants, power station, chemical industries etc. Packing: by steel drum or big bag