grinding media forged and cast balls and steel bars suprasteel is a company specialized in the supply of grinding media for mining, power plants, clinkers and cement plants. we only work with most reputed and important worldwide steel rolling mills, exporting to customers in mining and cement plants in europe, africa and latin america.,grinding media magotteaux,high-chrome media has a superior performance and creates steady milling conditions due to its low wear rate. for each specific alloy there is a constant hardness of all grinding media. this creates a positive influence in the down-stream process. high-chrome media is suitable for both wet and dry ore applications in ball mills and tower mills.