... for cutting and grinding of carbon u-steel,alloy steel, ductile iron and other materialsHigh speed, long usage lifeThe max safe use ... of linear speed is 80m/s ,the hardness medium iron to a large amount of wheel wear medium, longer life ... for cutting and grinding of carbon u-steel,alloy steel, ductile iron and other materials.Widely used in shipbuilding, metallurgy,chemical machinery ...