This U.S. industry comprises establishments primarily engaged in manufacturing rubber goods (except tubing) for mechanical applications, using the processes of molding, extruding or lathe-cutting. Products of this industry are generally parts for motor vehicles, machinery, and equipment. Cross-References. Establishments primarily engaged in manufacturing rubber tubing from natural and synthetic rubber or in manufacturing rubber products for mechanical applications using processes other than molding, extruding or lathe-cutting are classified in U.S. Industry 326299, All Other Rubber Product Manufacturing.