37 general building construction works; [ dredging; road paving; masonry; ] steel structure construction works; [ plastering; carpentry contractor services; tile laying, bricklaying and block laying; building reinforcing; painting services for houses, buildings and cars; erecting scaffolding; earthworks construction and excavation services, namely, cutting away of earth and sand, piling up and carrying of soil; ] concrete construction; [ interior finishing, namely, sealing and caulking; roofing installation and repair; plumbing; ] machinery installation, namely, installation of elevators, escalators, air conditioning machines, broadcasting machines and fire fighting equipment; [ drilling of wells of water and wells of oil; ] Construction and contracting services, namely, installation and maintenance of commercial electrical systems for buildings, apartment buildings and condominiums, large infrastructure projects in the nature of waste water treatment plants, [airports, breweries,] steel mills, [hotels, office complexes, healthcare facilities, highways,] government facilities, and transportation agencies; installation, maintenance and upgrade of transmission and distribution power lines and electrical substation facilities for electric utility companies and industrial, mining, institutional and government projects; [ installation and maintenance of telecommunication installations in the nature of underground and overhead copper and fiber optic cables, foundation construction, and tower installation; thermal insulating for buildings; construction, installation and maintenance of plumbing, air conditioning, heating and electricity into buildings for others; shipbuilding; repair and maintenance of ships and boats; aircraft maintenance and repair; repair of bicycles; repair and maintenance of automobiles; repair and maintenance of railway rolling stock; repair and maintenance of two-wheeled motor vehicles; repair and maintenance of chick brooders; repair and maintenance of egg incubators; ] repair and maintenance of medical machines and apparatus; [ repair and maintenance of printing and bookbinding machines and apparatus; repair and maintenance of movie projectors; repair and maintenance of photographic machines and apparatus; repair and maintenance of elevators; repair and maintenance of chemical processing machines and apparatus; repair and maintenance of fire alarms; repair and maintenance of gasoline station equipment; repair and maintenance of glassware manufacturing machines and apparatus; repair and maintenance of mechanical parking systems; repair and maintenance of milk filters; repair and maintenance of milking machines; repair and maintenance of industrial dish washing machines; repair and maintenance of industrial washing machines; repair and maintenance of fishing machines and instruments; repair and maintenance of metalworking machines and tools; repair and maintenance of shoe making machines and instruments; repair and maintenance of non-hand-held plowing machines and implements; repair and maintenance of cultivating machines and implements; repair and maintenance of harvesting machines and implements; repair and maintenance of plant fiber processing machines and implements; repair and maintenance of fodder presses; repair and maintenance of fodder cutters; repair and maintenance of fodder mixers; repair and maintenance of fodder mills; repair and maintenance of industrial furnaces; repair and maintenance of mining machines and apparatus; repair and maintenance of rubber-goods manufacturing machines and apparatus; repair and maintenance of sericultural machines and implements; repair and maintenance of vending machines; repair and maintenance of firearms; repair and maintenance of water purifying apparatus; ] [repair and maintenance of electric lighting apparatus;] [ repair and maintenance of machines and apparatus for processing foods and beverages; ] repair and maintenance of office machines and apparatus; [ repair and maintenance of machines and apparatus for lumbering, woodworking, and veneer and plywood making; repair and maintenance of textile manufacturing machines and apparatus; repair and maintenance of diving machines and apparatus; repair and maintenance of temperature indicators, gasometers, thermometers, water meters, balances, tape measurers, measuring rulers, pressure gauges (manometers), accoustic meters, tachometers, accelerometers, refractometers, hygrometers, illuminometers, vibration meters, noise meters, speed indicators, calorimeters, viscosimeters, concentration meters, gravimeters, densimeters, spherometers, inclinometers, distance measuring machines, range finders, and magnetic compass for surveying; repair and maintenance of tobacco processing machines; repair and maintenance of industrial air-conditioners; repair and maintenance of gas burners and oil burners; repair and maintenance of boilers; repair and maintenance of centrifugal pumps, reciprocating pumps, rotary pumps, axial flow pumps, mixed flow pumps and vacuum pumps; repair and maintenance of refrigerators and freezers; repair and maintenance of storage tanks; ] [repair and maintenance of intercoms, facsimile machines, aeronautical radio communication machines, navigation apparatus for vehicles (on-board computers), radar machines and apparatus,] compact disc players, videocameras (camcorders), videodisc players, videotape recorders and loudspeakers, but not including telephone sets, radio receivers and television receivers; [ telephone repair; ] repair of [radio and] television sets; repair and maintenance of computers; repair and maintenance of power distribution and control machines and apparatus, namely, electric switches, power distributing boxes, plugboards, and fuses for electric current; repair and maintenance of power generators; repair and maintenance of electric motors [ ; repair and maintenance of painting machines and apparatus; repair and maintenance of vehicle washing installation; repair and maintenance of construction machines and apparatus, namely, excavating machines, namely, slacklines, truck cranes, power shovels, rooters, foundation work machines, namely, earth augers, pile-drivers, pile-extractors, grout pumps, ground surface finishing and compacting machines, namely, graders, earth scrapers, tamping machines, bulldozers, rammers, road rollers, concrete machines, namely, concrete placing machines, concrete vibrators, concrete paving machines, concrete mixers, bather plants, asphalt paving machines, namely, asphalt distributors, asphalt finishers, asphalt plants, asphalt mixers, dredging machines, namely, mud dredging machines and dippers; repair and maintenance of waste compacting machines and apparatus; repair and maintenance of waste crushing machines and apparatus; repair and maintenance of machines and apparatus for pulp-making, papermaking and paper-working; repair and maintenance of semiconductor manufacturing machines and systems; repair and maintenance of machines and apparatus for use in beauty salons and barbers' shops; repair and maintenance of plastic processing machines and apparatus; repair and maintenance of packing and wrapping machines and apparatus; repair and maintenance of sewing machines; repair and maintenance of consumer electric appliances, namely, electric flat irons, electric radiant heaters, microwave ovens, electric toasters, electric coffee makers, electric washing machines, electric refrigerators, electric space cooling apparatus, electric cooking pots, electric mixers, electric massage apparatus and electric vacuum cleaners; repair and maintenance of amusement machines and apparatus, namely, roller coasters and go-carts; repair and maintenance of laboratory apparatus and instruments; repair of sports equipment; repair of toys and dolls; furniture restoration and maintenance; umbrella repair; repair and maintenance of gas water heaters; repair and maintenance of non-electric cooking heaters; repair and maintenance of cooking pots and pans; repair and maintenance of musical instruments; repair of bags and pouches; safe maintenance and repair; repair of shoes and boots; setup and repair of locks; repair of toilet stool units with a washing water squirts; repair of fishing tackle; clock and watch repair and maintenance; sharpening of scissors and kitchen knives; repair of billiard equipment; repair of game machines and apparatus, namely, Japanese horizontal pinball machines (smarktball machines), lottery wheels, Japanese vertical pinball machines (pachinko machines) and billiard equipment; repair of personal ornaments, namely, accessories, namely, earrings, insignias of precious metal, buckles of precious metal, badges of precious metal, bonnet pins of precious metal, tie clips, tie pins, necklaces, bracelets, pendants, brooches, jewelery, medals, rings (trinket) and medallions; repair of spectacles; repair and maintenance of bathtubs; fur care and repair; laundering of fur and clothing; pressing of clothing; repair of tatami mats; clothing repair; fluffing of cotton batting for futon; chimney sweeping; cleaning of building exterior surfaces; window cleaning; carpet and rug cleaning; floor polishing; septic tank cleaning; storage tank cleaning; street cleaning; bathtub and bath boiler cleaning; disinfecting of telephone hard-sets; vermin exterminating, not for agriculture, forestry and horticulture; rental of car-washing apparatus; rental of electric washing machines; rental of construction machines and apparatus; rental of floor cleaning machines; rental of mops; collection of industrial waste and trash; rental of mining machines and apparatus; rental of vending machines; drying of clothing, furs and fabric ]