Taking fiber cloth，steel as backing materials，flexible disc is made of brown fused alumina and pink fused a}umina.There are three kinds:f}at，arc and cup discs.Compared with reinforced grinding wheel，it is high flexible，effective removal，high tensile strength，self一sharpness，high efficient grinding，low noise，etc.It is widely used in grinding automobiles，stainless steel，and aluminum alloy，beam welding and stamping.