gas heaters for water; oil heaters for water for domestic use; oil heaters for water for industrial use; saunas for industrial use; furnace boilers; heating apparatus, namely, gas ranges, cooking ovens for kitchen use, portable wood burning stoves made of clay, oil stoves, and barbecue grills; sinks; electric dish dryers for industrial use; rice cookers for industrial use; electric roasters for commercial use; gas ranges for industrial and commercial use; electric ranges for industrial and commercial use; drying apparatus, namely, hair dryers, electric dish dryers, clothes dryers, electric industrial room dryers for heating, and hot water industrial room dryers for heating; distillate apparatus, namely, distilling units, distilling tubes, distilling tanks, distilling flasks, distilling condensers, distillation analyzers, and distilling columns; heat exchangers; heating and air conditioning equipment, namely, warm heaters, air heating furnaces, hot water heaters, steam heaters, single induction air conditioners, central air conditioners, window air conditioners, radiators, floor warmers, electric road surface warmers, and hot water road surface warmers; toilet cubical unit comprising a toilet, washbasin and light fixture enclosed in a single unit; bath cubicle unit comprising a shower, bathtub, washing floor, vanity, and light fixture enclosed in a single unit; saunas for domestic use; bath goods, namely, showers, bathtubs, bathtubs with washing floor, hot tubs, bathtubs with vanity and washing floor, and bath boilers; water purifiers for domestic use; level controlling metal valves in tanks, and level controlling plastic valves in tanks; electric garbage incinerators for domestic use; electric garbage incinerators for industrial use; solar heaters for water; electric heaters for water for domestic use; electric heating appliances for domestic use, namely, air conditioners and range hoods; electric heaters for water for industrial use; toilet seats with hygienic cleaning function; and toilet bowls