Casting Iron Ball (High Chrome Grinding Steel Ball): Our company was founded in 1986, we produce all kinds of grinding steel ball, and our annual production is 50000 ton. We exported our products to more than twenty countries all over the world and have high reputation in the world. The export production is 80% of all the production. We have obtained the iso9001 international quality system authentication, iso14001 environmental system authentication. Our main products as follows: 1.forging grinding steel ball (the high manganese grinding steel ball). This kind of grinding steel ball is one of our major products, it's major character is that: high hardness, no breakage, no wearing, lower price. It is used in cement plants, mines, power stations etc. Hardness: hrc 55-65 breakage rate: max1% 2.the high chrome cast grinding steel ball. Hardness: hrc 58-65 breakage rate: max1% if you are interested in our products, please contact us. We'll quote our best price and give you the prior for a long time meanwhile you are sincerely welcomed to our company for a visit.