Set units of toilet bowl and seat; Sanitary bathroom units, namely, a shower, bathtub, wash area, vanity, mirror, and light fixture enclosed within a single housing formed of wallboards, floorboards, and top boards, sold as a unit; Sauna bath units for household or industrial purposes; Dryers, namely, clothes dryers for household use including those mounted in a bathroom for drying clothes; Recuperators for water heating; Evaporators; water distillation apparatus; Heat exchangers; Industrial boilers; Feed water heaters; Air preheaters for industrial purposes; Steam superheaters; Attemperators, namely, steam desuperheaters for industrial purposes; electric space heating and drying apparatus for bathroom; Hot-water floor heating apparatus for household purposes; Hot-water floor heating apparatus for industrial purposes; Electric floor heating apparatus for household purposes; Gas burners for household and industrial use; Oil burners for household and industrial use; Heat coils for water heaters; Heat pumps for water heaters; Hot-air space heating apparatus for household and industrial use; Hot-water space heating apparatus for industrial purposes; Steam heating apparatus for household and industrial use; Locally induced air-conditioners for industrial purposes; Central air-conditioning installations for industrial purposes; Radiators for air-conditioning purposes; Window-mounting air-conditioners; Pavement heating apparatus; Tap water faucets; Level controlling valves for tanks; Pipe line cocks; Solar water heaters; Electric lamps and other lighting apparatus for bathroom, namely, arc lamps and lighting fixtures; Gas hot-water heaters for household purposes or industrial purposes; Oil hot-water heaters for household or industrial purposes; Heat exchangers for water heaters; Burners for water heaters, namely, gas burners and oil burners for water heaters; Plumbing fittings, namely water connection valves for water heaters; Water heater housing unit, namely, a mount cover to be attached to a recess of a wall for installing a water heater; Gas hot-water heaters including those utilizing exhaust gas for household purposes or industrial purposes; Oil hot-water heaters including those utilizing exhaust gas for household or industrial purposes; Electric water heaters for commercial, industrial, and domestic use; Clothes drying machines for household or industrial purposes; Humidifiers for household or industrial purposes; Electric bath-water purifying apparatus for household purposes; Air purifiers for household or industrial purposes; Dehumidifiers for household or industrial purposes; Electric fans; Water ionizers; Electromagnetic induction cookers for household or industrial purposes; Electric space cooling apparatus for household and industrial use; Range hoods, namely, extractor hoods for household purposes; Non-electric cooking heaters; Gas cooking ovens; Oil cooking stoves; Baking ovens; Barbecue grills; Kitchen sinks; Household tap-water filters; Bath fittings namely, bath tub jets, faucets, and bath boilers; Bathtub units integral with a bathroom floor; Showers; Bathtub units integral with a bathroom floor and sink; Bath boilers; Toilet stool units with a washing water squirter; Gas stoves, namely, space-heaters for household purposes; Coal stoves, namely, space heaters for household use; Oil stoves, namely space heaters for household purposes; Fireplaces

Repair or maintenance of gas water heaters; Repair or maintenance of boilers; Repair or maintenance of bath boilers; Repair or maintenance of oil water heaters; Repair or maintenance of air-conditioning apparatus for industrial purposes; Burner maintenance or repair; Pump repair or maintenance; Repair or maintenance of solar water heaters; Repair or maintenance of heating and drying apparatus for bathroom; Repair or maintenance of gas water heaters including those utilizing exhaust gas; Repair or maintenance of oil water heaters including those utilizing exhaust gas; Repair or maintenance of electric space cooling apparatus for household purposes; Repair or maintenance of electric water heaters for household purposes; Repair or maintenance of freezing machines and apparatus; Repair or maintenance of electronic machines and apparatus; Repair or maintenance of computers; Repair or maintenance of telecommunication machines and apparatus; Repair or maintenance of remote controllers; 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 measuring and testing machines and instruments; Repair or maintenance of storage tanks; Repair or maintenance of industrial dish washing machines; Repair or maintenance of cooking apparatus for industrial purposes; Repair or maintenance of washstands; Furniture restoration; Clock and watch repair or maintenance; Repair or maintenance of non-electric cooking heaters; Repair or maintenance of cooking pots and pans; Repair or maintenance of bath tubs; Rental of laundry dryers; Rental of space cooling apparatus for household purposes; Rental of air-conditioning apparatus; Construction services, namely, planning, laying out, construction and repair of residential and commercial buildings and facilities; General building construction; Construction consultancy; and Maintenance and installation of building construction equipment