333518 Other Metalworking Machinery Manufacturing This U.S. industry comprises establishments primarily engaged in manufacturing metal working machinery (except industrial molds; metal cutting machine tools; metal forming machine tools; special dies and tools, die sets, jigs, and fixtures; cutting tools and machine tool accessories; and rolling mill machinery and equipment). The data published with NAICS code 333518 include the following SIC industry: 3549 Metalworking machinery, n.e.c.