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11
Apparatus for lighting, heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes.
irrigation systems, consisting of drip emitters, drip tape, polytubing, microtubing, poly plumbing fittings, namely, bibs, micro sprinklers and sprayers, foggers, spray heads, valves, plastic and metal filters for irrigation equipment, regulators and irrigation water and air control valves
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17
Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes; plastics in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes, not of metal.
flexible plastic pipes for supplying water and for use in the fields of agriculture, irrigation, construction and mining; plastic sheeting for use in such applications as displays, signage, trade show exhibits, advertising and graphics, models and prototypes, embossing and engraving and interior decoration; plastic sheeting for use as replacements for glass in buildings, airplanes, phone booths, bus stops, outdoor lighting, safety glasses, shields and visors; and plastic sheeting for use as replacements for wood, steel and glass for partition walls, false ceilings, skylights, outdoor lighting, roof lighting and greenhouse walls and roofs
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19
Building materials (non-metallic); non-metallic rigid pipes for building; asphalt, pitch and bitumen; non-metallic transportable buildings; monuments, not of metal.
rigid plastic pipes, not of metal, for supplying water and for use in the fields of agriculture, irrigation, construction and mining; rigid plastic well screens and casings used in the construction of water wells