Pipes of cast iron; iron pipes; pipes of cast steel, and cast iron steels; Metal junctions for pipes; metal valves, not being parts of machines; metal valves not being parts of machines for water pipes; cylindrical junctions, of metal, for pipes; metal elbows for pipes; metal branch pipes; metal flanges; liquid storage tanks of metal; industrial water storage tanks of metal; chemical storage tanks of metal for the treatment of wastewater; industrial water storage tanks of metal for the treatment of wastewater; liquid storage tanks of metal for the treatment of wastewater; and metal pipe fittings; Steel pipes; deformed pipes and tubes, of metal; metal pipes; water pipes of metal; and metal materials for building and construction utilizing thermal expansion members for prevention of fire, disaster or accidents, namely, members for attachment to collecting drainpipes to block drain lines

Sludge incinerators; incinerators; heat exchanging apparatus being heat exchangers; heat exchangers for chemical processing; sludge drying apparatus, namely, dryers used for the drying of sludge by steam, fire, compressed air and compressed gases; drying apparatus for chemical processing; apparatus for cooling waste gas discharged from incinerators, namely, cooling equipment that cools the waste gas discharged from incinerators by spraying water and other coolants into the gas; apparatus for treating waste gas discharged from incinerators, namely, apparatus for removing sulfur oxides, hydrochloric acids, dioxins and other hazardous substances in the waste gas; apparatus for humidifying incinerated ash in incinerators, namely, humidifiers; apparatus for fermentative treatment of organic waste; apparatus for fermentative treatment of organic waste for household purposes; plumbing fittings, namely, valves for water or gas plumbing; plumbing fittings, namely, valves for pipeline; water fountains; air conditioning apparatus; air-heaters, namely, apparatus for heating combustion air in the incinerator and apparatus for heating air taken into or exhausted from the air conditioner; air reheaters, namely, apparatus for reheating heated combustion air in the incinerator and apparatus for reheating heated air taken into or exhausted from the air conditioner; industrial water purifying apparatus, sewage water purifying apparatus and waste water purifying apparatus; apparatus for methane fermentative treatment of organic effluent, namely, methane fermentative treatment tanks for use in treatment of liquids including water, industrial effluent and sewage; apparatus for household purposes, for fermentative treatment of organic effluent, namely, methane fermentative treatment tanks for use in treatment of organic materials contained in the household effluent; waste water treatment tanks for industrial purposes in the nature of water purification tanks; septic tanks for industrial purposes; apparatus for treatment of excreta, namely, bioreactor for use in the treatment of waste, environmental control apparatus in the nature of particle activators for use in waste water treatment; waste water purification units in the nature of dust collecting apparatus for use in treatment of waste water; water treatment equipment, namely, filter basins for use in waste water treatment installations; water purification tanks in the nature of digestion tank equipment for use in waste water treatment installations; deodorizing units utilizing microorganisms in the nature of biological deodorization apparatus for use in waste water treatment installations; activated carbon deodorizing units in the nature of biological deodorization apparatus for use in waste water treatment installations; deodorizing units utilizing chemical action of chemicals in the nature of biological deodorization apparatus for use in waste water treatment installations; soil deodorizing units in the nature of biological deodorization apparatus for use in waste water treatment installations; water purification installations; filtration apparatus for use in water purification installations; industrial rice cookers; industrial vegetable fryers; industrial stir fryers; ceramic membrane filtration apparatus for the treatment of wastewater; organic membrane filtration apparatus for the treatment of wastewater; filtration apparatus for the treatment of wastewater; filters for membrane filtration apparatus for the treatment of wastewater; filter units for membrane filtration apparatus for the treatment of wastewater; casings for membrane filtration apparatus for the treatment of wastewater; membrane filtration cartridges for the treatment of wastewater; replaceable membranes for membrane filtration apparatus for the treatment of wastewater; and air diffusers for membrane filtration apparatus for the treatment of wastewater; Apparatus for household purposes, for treatment of effluent, namely, treatment tanks for use in purification of household effluent; waste water treatment tanks for household purposes in the nature of waste water purification units; and refrigerating machines, namely, low temperature storages for cereals