37 [ General building construction; Installation, repair, cleaning, and maintenance of Chemical processing machines and apparatus, Agricultural machines and implements, Non-electric prime movers not for land vehicles, Pneumatic or hydraulic machines and instruments, Machine elements not for land vehicles, Waste compacting machines and apparatus, Waste crushing and shredding machine, Starters for motors and engines, Alternating and direct current motors not including those for land vehicles but including parts for any AC motors and DC motors, Alternating current generators, Alternators, Direct current generators, Ozonisers, ozonators, Electrolysers, electrolytic cells, Fire alarms, Gas alarms, Anti-theft warning machines, Measuring or testing machines and apparatus, Power distribution or control machines and instruments, Rotary converters, Phase modifiers, Batteries and cells, Electric or magnetic meters and testers, Electric wires and cables, Electronic machines and apparatus and their parts, Drying apparatus for chemical processing, Recuperators for chemical processing, Steamers for chemical processing, Evaporators for chemical processing, Distillers for chemical processing, Heat exchangers for chemical processing, Industrial furnaces, Nuclear reactors, atomic piles, Industrial boilers, Air-conditioning apparatus for industrial purposes; Freezing and refrigerating machines and apparatus, Waste water treatment tanks for industrial purposes, Septic tanks for industrial purposes, Garbage incinerators, Water purifying apparatus; Installation, repair, cleaning, and maintenance of Nuclear equipment; Installation, repair, cleaning, and maintenance of Measuring or testing machines and apparatus and of detectors; Installation, repair, cleaning, and maintenance of Semiconductor manufacturing machines and apparatus; Installation, repair, cleaning, and maintenance of Incinerators; Installation, repair, cleaning, and maintenance of Gasifiers; Installation, repair, cleaning, and maintenance of Machines and apparatus for treating water, sewerage water, industrial water, industrial waste water, night soil, refuse, household waste, industrial waste, industrial waste gases and heat for manufacturing compost; Installation, repair, and maintenance of Refuse compressors and sewage soil crushers; Installation, repair, and maintenance of waste sewage night soil treatment equipment and of composting machines and instruments; Installation, repair, and maintenance of Machines and apparatus for purifying water and sewage water; Installation, repair, and maintenance of Gaseous melting machines, equipment and system; Installation, repair, and maintenance of Melting furnace for sludge and of sludge treatment equipment; Installation, repair, and maintenance of Distilled water recovery equipment and ultra pure water system; Installation, repair, and maintenance of Electric demineralizers and continuous-electro deionization; Installation, repair, and maintenance of Machines and apparatus for excluding Nox, namely, nitrogen-oxide and Sox, namely, sulfa-oxide; Installation, operation, repair, cleaning, and maintenance of Pumps, vacuum pumps, compressors, pressure tanks, burners, boilers, freezers/freezing equipment, fans, blowers, turbines, heaters and air-conditioning apparatus; Installation, repair, and maintenance of Fluidized bed boiler; Installation, repair, cleaning, and maintenance of Water supplying machines automatically operated; Installation, operation, repair, cleaning, and maintenance of refrigerating machines, namely, Centrifugal Refrigerating Machines, Absorption Refrigerating Machines, Gas Direct Fire Heater Chillers, Oil fired absorption chiller/heater, Heat Pumps, Chilling Units, Fan Coil Units, Cooling Towers and Ice Storage machines, equipment and systems; Installation, repair, cleaning, and maintenance of metalworking machines and machine tools, power polishers, chemical-mechanical polishing machines used in the manufacture of semi-conductors, surface polishers for semiconductor wafers, semi-conductor wafer treatment machines and implements and machines for carrying the wafers, as well as components and accessories thereof, Electrical work contracting and telecommunication work contracting; Installation, repair, and maintenance of electricity control panels and control mechanisms for machines, engines and motors; Construction, installation, repair, and maintenance of telecommunication equipment and systems; Construction, installation, repair, and maintenance of systems for controlling and monitoring pumps; Construction, installation, repair, and maintenance of electrical information and transmission machines, equipment and systems for multimedia; Construction, installation, repair, and maintenance of visual sensors for watching traffic; Construction, installation, repair, and maintenance of machines, equipment and systems for controlling, monitoring and managing machines; Construction, installation, repair, cleaning, and maintenance of Plating apparatus, namely, Electric soldering apparatus, Electric plating apparatus and Electroless plating apparatus, Bump plating apparatus, namely, Plating machines for gold, solder or copper bump plating on circuit terminals on IC chips; Construction, installation, repair, cleaning, and maintenance of Automatic apparatus for analyzing solution composition in solder plating system, namely, Solutions analyzers for solder plating on IC lead frames and for keeping each component density constant; Construction, installation, repair, cleaning, and maintenance of Automatic apparatus for treating draining in solder plating system, namely, Water treatment machines for recovering pure water from waste water in solder plating lead frame cleaning/processing; Installation, repair, and maintenance of computers including central processing units, programmed-data-carrying electronic circuits or magnetic disks/magnetic tapes/magnetic cards, optical disks and other peripheral equipment; Installation, operation, repair, replacement work, cleaning, and maintenance of equipment for supplying water to or draining water from buildings; Installation, repair, replacement work, cleaning, and maintenance of water receptacles or water tanks in elevated positions; Installation, repair, and maintenance of machines and implements, components and accessories thereof, for processing, forming and manufacturing of thin films for using electronic machines and implements; Installation, repair, and maintenance of machines and implements, components and accessories thereof, for manufacturing of liquid crystal display for using electronic machines and implements; custom manufacture, installation, repair, and maintenance of solar batteries as well as components thereof; custom manufacture, installation, repair, and maintenance of fuel cell as well as components thereof; Installation, repair, and maintenance of chemical reactors, used for attaching a vapor of a chemical material and deposition equipment, as well as components thereof; Installation, repair, and maintenance of equipment used for processing wafers used for manufacturing semiconductors, as well as components thereof; Installation, repair, and maintenance of epitaxial reactors, chemical deposition reactors, plasma etching process equipment, physical deposition reactors, ion injection equipment, and supporting frames therefor; Installation, repair, and maintenance of containers for semiconductor wafers, and components thereof; Installation, repair, and maintenance of measurement equipment for film thickness of semiconductor wafers, and components thereof; Rental of prime movers; Rental of pneumatic or hydraulic machines and instruments, namely, rental of Volute Pumps, Submersible Motor Pumps, Self-Priming Pumps, Turbo molecular pumps, Cryo turbo molecular pumps, Regenerative Pumps, Vacuum Heat Pumps, Gear Pumps, Screw Pumps, Centrifugal Fans, Radial Fans, Paddle Fans, Multi-Blade Fans, Axial Flow Fans, Pumps, Centrifugal pumps, Reciprocating pumps, Rotary pumps, Axial flow pumps, Mixed flow pumps, Vacuum pumps, Reciprocating vacuum pumps, Rotary vacuum pumps, Diffusion pumps, Blowers, Centrifugal blowers, Rotary Blowers, Axial flow blowers, Turbo blowers, Compressors, Centrifugal compressors, Reciprocating compressors, Rotary compressors, Axial flow compressors, Turbocompressors; Collection, sorting and disposal of waste and trash ]