1.Max.working speed: 80m/s 2.Application: Grey cast iron,skin of cast iron, non ferrous metal, non ferrous alloy, concrete Abrasive wheels I---Economic type (DIY market) II---Professional type (Industrial market) -Max.working speed: 80m/s - Material: Grey cast iron,skin of cast iron, non ferrous metal, non ferrous alloy, concrete, natural and artificial stones. - Application: Grinding of grey ...