silicon carbide grinding cup wheel It works rapidly ,and is used in wide rangeApplication: for stone ,glass ,granite This cup wheel is ... stone by different colours,different sizes, the more popular is the 4and 5 .inch .We enjoy the high quality products, the reasonable price, the best services.The ... non-ferrous metal ,copper ,aluminum ,concrete and artificial stone .The popular size is 4"X 2 X 5/8- ...