17 : Semi-processed plastic in the form of films, sheets, tubes, bars or rods; insulators for electrical cables and for air conditioners; pipe gaskets; plastic film for industrial and commercial packing, rings of rubber for uses as pipe connection seals; Non-metal flexible pipes for heating, ventilation, and air conditioning applications; Non-metal fittings for non-metal pipes, namely, tubes and hoses for heating, ventilation, and air conditioning applications in the nature of pipe gaskets, non-metal fittings for pipes in the nature of rosettes, non-metal tubing couplings, and non-metal couplings for air conditioning hoses; flexible, non-metal insulated and non-insulated drain hoses made from polyethylene; non-metal lineset protectors for heating, ventilation, and air-conditioning applications, namely, plastic conduits and fittings therefor in the nature of non-metal lineset couplings and joints; insulation for air conditioners; air conditioner hoses made of plastic or rubber; Non-metal duct, pipe or hose fittings, namely, elbows, tees being T-shaped connectors, couplers, couplings, reducers being connectors, flanges, wall flanges, sleeves for protecting parts of machinery and for insulation, wall sleeves for pipes and wiring to penetrate walls and floors, wall plates for use in preventing the piercing and cutting of piping and wiring within a wall, wall plates for pipes and wiring to penetrate walls and floors, insulation protection plate, joints, risers, support struts, attachment plates for the purpose of attaching pipes to ceilings and walls, and non-metal fittings for pipes; Non-metal trunking for air conditioning purposes, namely, plastic insulating conduits for air conditioning purposes, pipe insulation, and insulation jackets for pipes; Insulation materials for retaining heat, for plumbing and for air-conditioning purposes; thermal insulation materials for plumbing and for air-conditioning purposes; insulation materials for pipes; flexible pipes, tubes and hoses, not of metal; hoses made of plastic for drainage; hoses made of synthetic resins for air conditioner; hoses made of synthetic resins for drainage; hoses made of rubber for drainage; flexible drain hoses, not of metal, for air-conditioning apparatus; drain hoses made of plastic; plastic hoses for plumbing use; hoses, not of metal, for air conditioner and non-metal hose fittings for air conditioner; hoses, not of metal, for drainage and non-metal hose fittings for drainage; junctions for pipes made of resins; raw or semi- worked rubber; junctions for pipes, not of metal; raw or partly processed mica; valves of rubber or vulcanized fiber, not including machine elements; joint packings for pipes related to air conditioner; joint packings for pipes for drainage; electrical insulating materials; washers of rubber or vulcanized fiber; chemical fiber thread, not for textile use; Mineral wool; slag wool for use as a building insulator; rubber thread and covered rubber yarn, not for textile use; chemical fiber yarn and thread, not for textile use; rubber cords and laces; industrial packaging containers of rubber; rubber stoppers for industrial packaging containers; rubber lids and caps for industrial packaging containers; vulcanized fiber; soundproofing materials of mineral wool, not for building purposes; non-metallic rigid hoses for air conditioner or drainage; insulating covers for industrial machinery; Insulating refractory materials, not for buildings; Hoses made of rubber, namely, watering hoses made of rubber, hoses made of rubber for use in ventilation; Hoses made of plastic, namely, watering hoses made of plastic, hoses made of plastic for use in ventilation; duct tapes; pipe joint tapes; electrical insulating tapes; adhesive tapes for industrial use; Adhesive bands other than stationery and not for medical or household purposes; insulating bands; insulated pipe supports, not of metal; Bonded non-metal seals for water pipe connections; Bonded non-metal seals for drain pipe connections; Bonded non-metal seals for air conditioner pipe connections; pipe joint sealants; sealant compounds for joints; Sealing and insulating materials; reinforcing materials not of metal for pipes; Non-permanent adhesive putty; Putty for use by plumbers for affixing air conditioners; Insulating cover for electrical cable and wire; Insulating tubes; insulating gloves; Electrical insulating rubber products; rubber stoppers for pipes of air conditioners or drainage; plastic stoppers for pipes of air conditioners or drainage; rubber for filling holes of wall or floor in the nature of putty for use by plumbers for use when affixing air conditioners; Rubber and plastic stoppers for water pipes; Plastic composite material in the form of tubes, boards, sheets, blocks, rods, powder, and pellets for use in manufacturing; Insulating and soundproofing materials; Insulating and soundproofing materials for use on pipes; shock-absorbing rubber buffers for industrial machinery; Shock absorbent padding in sheet form for use in manufacturing; Plastic tapes for use in manufacturing plastic drain hoses for piping of air-conditioning apparatus or electric space cooling apparatus; seals, mainly made from inorganic fillers, expanding materials, resins and rubbers, of flame-retardant or fireproof sleeves for piping of air-conditioning apparatus or electric space cooling apparatus; heat insulation materials, being flame-retardant or fireproof materials mainly made of expanded plastic or expanded rubber, for piping of air-conditioning apparatus or electric space cooling apparatus; seals, mainly made from inorganic fillers, expanding materials, resins and rubbers, for piping of air-conditioning apparatus or electric space cooling apparatus; plastic covers for insulation for piping of air-conditioning apparatus or electric space cooling apparatus; shock absorbing buffers of plastic for piping of air-conditioning apparatus or electric space cooling apparatus; Non-metal trunking for air conditioning purposes, namely, plastic conduits for air conditioning purposes; plastic conduit for drainage, namely, insulating plastic drain hoses coated with heat retaining materials, for plumbing for air-conditioning apparatus, space cooling apparatus and space air conditioners