Chemicals; chemicals used in industry; chemicals used in science; chemicals used in photography; phenols; organic acids and their salts; chemical agents; isocyanate; polyols; chemicals for water-leakage prevention; chemical sealants for water-leakage prevention; chemical agents for water cut-off; chemicals for ground stabilization; chemicals for solidifying natural ground; glue and adhesives for industrial purposes; non-metallic minerals; foundry sand; unprocessed plastics; unprocessed plastics for use in industry; phenolic resins; urethane resins; unprocessed urethane resins; polyurethane resins; unprocessed polyurethane resins; polyurea resins; unprocessed polyurea resins; isocyanate resins; unprocessed isocyanate resins; polyol resins; unprocessed polyol resins; novolac resins; unprocessed novolac resins; chemicals for manufacturing polyurethane foam; chemical compositions for developing and printing photographs

Chemical processing machines and apparatus; electromechanical machines for chemical industry; chemical handling machines; food or beverage processing machines and apparatus; plastic processing machines and apparatus; actuators; actuators for mechanisms; actuators for valves; actuators being parts of machines; pneumatic or hydraulic actuators, other than for land vehicles; hydraulic valve actuators; pneumatic valve actuators; pneumatic or hydraulic linear actuators, other than for land vehicles; dishwashers for industrial purposes; mixing machines for industrial use; mixing machines for commercial use; food mixing machines for commercial use; mixing machines for chemical processing; stirring and mixing machines; stirring and mixing apparatus for industrial purposes; valves, machine elements not for land vehicles; valves being parts of machines; automatic control valves, machine elements not for land vehicles; pressure valves being parts of machines; back pressure valves being parts of machines; clack valves being parts of machines; handles for valves, machine elements not for land vehicles; power transmissions and gearing, machine elements not for land vehicles; reaction vessels for chemical processing; reactors for use in the chemical industry; industrial chemical reactors; pharmaceutical manufacturing machines and apparatus; reaction vessels for chemical processing for pharmaceutical manufacturing machines; industrial electrolyzers; electrolysis apparatus for industrial use

Measuring or testing machines and instruments; flowmeters; level indicators; power distribution or control machines and apparatus; electrolytic cells; industrial electrolytic cells; fluid control apparatus and instruments; flow control apparatus and instruments; electric actuators; electric valve actuators; electric linear actuators

Wastewater treatment tanks; wastewater treatment tanks for industrial purposes; water purifying apparatus for industrial purposes; water purification units; water purifying apparatus; septic tanks; septic tanks for industrial purposes; wastewater deodorizing treatment equipment; sludge treatment equipment; tap water faucets; level controlling valves in tanks; level controlling valves for tanks; cocks for pipelines; hydrants; curb cocks; stop cocks; apparatus and installations for water supply purposes; water distribution apparatus; paddy water level regulators for agricultural irrigation; paddy water level regulator floats for agricultural irrigation; paddy water level regulator float valves for agricultural irrigation; wastewater treatment apparatus for industrial purposes; wastewater treatment equipment for industrial purposes; wastewater treatment installations for industrial purposes; industrial wastewater treatment apparatus; industrial wastewater treatment equipment; industrial wastewater treatment installations; industrial drainage treatment apparatus; industrial drainage treatment equipment; industrial drainage treatment installations; wastewater treatment apparatus; wastewater treatment equipment; wastewater treatment installations; drainage treatment apparatus; drainage treatment equipment; drainage treatment installations

Valves of rubber or vulcanized fiber, other than parts of machines; junctions for pipes, not of metal; pipe couplings and joints, not of metal; gaskets; joint packings; joint packings for pipes; flanges, not of metal; plastic semi-worked products; plastic pipes; plastic board; plastic materials, semi-processed, in the form of boards; foamed plastics; urethane foams; polyurethane foams; phenol foams; phenolic foams

Valves of plastics, not including machine elements; handles for valves of plastics; automatic control valves of plastics, other than machine elements; corks, plastics and wooden stoppers; plastic and wooden lids; reservoirs, not of metal nor of masonry; storage tanks, not of metal nor of masonry; tanks, not of metal nor of masonry; liquid storage tanks or reservoirs, not of metal nor of masonry; industrial water storage tanks, not of metal nor of masonry; nuts and bolts, not of metal; washers, not of metal, not of rubber or vulcanized fiber; clamps of plastics

Plumbing; construction; water well drilling; machinery installation; repair or maintenance of chemical processing machines and apparatus; repair or maintenance of measuring and testing machines and instruments; repair or maintenance of reservoirs; repair or maintenance of storage tanks; repair or maintenance of tanks; repair or maintenance of water purifying apparatus; repair or maintenance of water purifying apparatus for industrial purposes; repair or maintenance of chemical plants; polyurethane foam spraying services; urethane foam spraying services; construction consultancy; inspection, maintenance or repair of piping components and tanks; drilling of geothermal wells; water supply construction; waterworks construction; installation of water pipelines; repair or maintenance of water pollution control equipment; maintenance, washing and cleaning of water supply facilities; reservoirs cleaning; storage tanks cleaning; tanks cleaning