classification of grinding machine | worldcrushers
Apr 17, 2016· NAICS Code 333517 – Machine Tool Manufacturing. Definition of NAICS Code 333517: This U.S. industry comprises establishments primarily engaged in the following:. Manufacturing metal cutting machine tools (except handtools) and/or; Manufacturing metal forming machine tools (except handtools), such as punching, sheering, bending, forming, pressing, forging and die-casting machines.