TJ Mechanical engineering and machinery TS Manufactures 6 HD Industries. Land use. Labor 4 Machine design and drawing 4 Machine construction (General) 3 HD28 Management. Industrial Management 2 Mechanics applied to machinery. Dynamics 2 T Technology (General) 2 Engineering machinery, tools, and implements 1 Finite element method 1 Information technology. Information systems 1 Machine tools and machining 1 Machinery exclusive of prime movers 1 Metal manufactures. Metalworking 1 Miscellaneous motors and engines.Including gas, gasoline, diesel engines 1 NA Architecture 1 Scanning systems 1 VM Naval architecture. Shipbuilding. Marine engineering 1 Welding 1 Work measurement. Methods engineering 1