One is a common dry grinding, a dust collecting device, dust and iron filings that occur when grinding the workpiece, grinding such a workpiece is the unmatched workpiece, thickness and width are very large, in oneThe species is a water grinding, a flushing device, which is deformed by the machining parts, and the surface of the workpiece is flushed while machining the components, so that the finish of the workpiece also ensures small workpiece deformation coefficient, so thatThe workpiece is slippery, and there are several special grinding, slope grinding, trimming grinding wheels, grinding workpiece, circular grinding, applying a trim mill, using an end surface around the grinding wheel, tumbling workpieceGrinding, R angle grinding, also R views that comply with the grinding wheel and the workpiece, and eating knife grinding slowly.