37 Installation of fuel batteries; Repair or maintenance of fuel batteries; Installation, maintenance and repair of secondary cell batteries; Repair or maintenance of automobiles; Automobile maintenance; vehicle gas stations (refuelling and maintenance); vehicle service stations (refuelling and maintenance); electric vehicle gas stations (charging and maintenance); electric vehicle service stations (charging and maintenance); vehicle battery charging; Charging of electric vehicles; Construction; Construction consultancy; Operation and maintenance of building equipment; Shipbuilding; Repair or maintenance of vessels; Aircraft repair or maintenance; Repair of bicycles; Repair or maintenance of railway rolling stocks; Repair or maintenance of two-wheeled motor vehicles; Repair or maintenance of cinematographic machines and apparatus; Repair or maintenance of optical machines and apparatus; Repair or maintenance of photographic machines and apparatus; Repair or maintenance of loading-unloading machines and apparatus; Repair or maintenance of fire alarms; Repair or maintenance of office machines and equipment; Repair or maintenance of air-conditioning apparatus (for industrial purposes); Repair or maintenance of burners; Repair or maintenance of boilers; Repair or maintenance of pumps; Repair or maintenance of freezing machines and apparatus; Repair or maintenance of electronic machines and apparatus; Repair or maintenance of telecommunication machines and apparatus; Repair or maintenance of construction machines and apparatus; Repair or maintenance of consumer electric appliances; Repair or maintenance of electric lighting apparatus; Repair or maintenance of power distribution or control machines and apparatus; Repair or maintenance of power generators; Repair or maintenance of electric motors; Repair or maintenance of laboratory apparatus and instruments; Repair or maintenance of measuring and testing machines and instruments; Repair or maintenance of medical apparatus and instruments; Repair or maintenance of firearms; Repair or maintenance of printing or bookbinding machines and apparatus; Repair or maintenance of chemical processing machines and apparatus; Repair or maintenance of glassware manufacturing machines and apparatus; Repair or maintenance of fishing machines and instruments; Repair or maintenance of metalworking machines and tools; Repair or maintenance of shoe making machines; Repair or maintenance of industrial furnaces; Repair or maintenance of mining machines and apparatus; Repair or maintenance of rubber-goods manufacturing machines and apparatus; Repair or maintenance of integrated circuits manufacturing machines; Repair or maintenance of semiconductor manufacturing machines; Repair or maintenance of machines and apparatus for processing foods or beverages; Repair or maintenance of machines and apparatus for lumbering, woodworking, or veneer or plywood making; Repair or maintenance of textile machines and apparatus; Repair or maintenance of tobacco processing machines; Repair or maintenance of painting machines and apparatus; Repair or maintenance of agricultural machines and implements; Repair or maintenance of machines and apparatus for pulp-making, papermaking or paper-working; Repair or maintenance of plastic processing machines and apparatus; Repair or maintenance of packaging or wrapping machines and apparatus; Repair or maintenance of sewing machines; Repair or maintenance of reservoirs; Repair or maintenance of gasoline station equipment; Repair or maintenance of mechanical parking systems; Repair or maintenance of bicycle parking apparatus; Repair or maintenance of industrial dishwashers; Repair or maintenance of cooking equipment for industrial purposes; Repair or maintenance of electric washing machines for industrial purposes; Repair or maintenance of vehicle washing installations; Repair or maintenance of vending machines; Repair or maintenance of power-driven floor cleaning machines; Repair or maintenance of amusement machines and apparatus; Repair or maintenance of apparatus and instruments for use in beauty salons or barbers' shops; Repair or maintenance of water pollution control equipment; Repair or maintenance of water purifying apparatus; Repair or maintenance of waste compacting machines and apparatus; Repair or maintenance of waste crushing machines; Repair or maintenance of divers' apparatus; Repair or maintenance of nuclear power plants; Repair or maintenance of chemical plants; Furniture restoration; Umbrella repair; Repair or maintenance of musical instruments; Safe maintenance or repair; Shoe repair; Clock and watch repair or maintenance; Sharpening of scissors and kitchen knives; Setup or repair of locks; Repair or maintenance of gas water heaters; Repair or maintenance of non-electric cooking heaters; Repair or maintenance of cooking pots and pans; Repair or maintenance of signboards; Repair of bags or pouches; Repair of personal ornaments; Repair of toys or dolls; Repair of sports equipment; Repair of billiard equipment; Repair of game machines and apparatus; Repair or maintenance of bath fittings; Repair of toilet stool units with a washing water squirts; Repair of fishing tackle; Repair of spectacles; Fur care and repair; Laundering; Pressing of clothing; Clothing repair (mending clothing); Fluffing of cotton batting for futon; Repair of tatami mats; Chimney sweeping; Cleaning of building exterior surfaces; Window cleaning; Carpet and rug cleaning; Floor polishing; Septic tank cleaning; Bathtub and bath boiler cleaning; Street cleaning; Reservoirs cleaning; Disinfecting of telephone hand-sets; vermin exterminating (other than for agriculture, horticulture and forestry); Sterilization of medical apparatus and instruments; Rental of construction machines and apparatus; Rental of floor cleaning machines; Rental of mops; Rental of car-washing apparatus; Rental of electric washing machines; Rental of laundry dryers; Rental of spin dryers for clothes; Rental of mining machines and apparatus