CLEANBOX

Condensing installations, namely, mechanical condensators; waste gas conduits being parts of machines; valves being parts of machines; catalytic converters; waste gas return valves being parts of machines; blowing machines for the compression, exhaustion and transport of gases; blowing engines other than for land vehicles; Water aeration systems comprising water pumps, air compressors and air blowers; pumps for machines

Flues and installations for conveying exhaust gases; heat exchangers being parts of machines for the removal of exhaust gases; chimney extractors, namely, chimney blowers; heat exchangers for fireplaces; draught accelerators for chimneys; chimney flues; fire ventilators for exhausting vapours; heat exchangers for the removal of flue gases; draught regulators for preventing the spread of steam; draught regulators for preventing the spread of flue gas; draught regulators for preventing the spread of smoke; draught dampers for inhibiting the spread of fire; draught regulators for preventing the spread of flames; electrically powered blowers for ventilation, namely, ventilating exhaust fans; kiln boosters in the nature of hot air blower

Glands for pipes not of metal; non-metallic pipe linings; flexible pipes, tubes, hoses and fittings therefor, and valves of rubber, and fittings for rigid pipes, all non-metallic; flexible pipes, tubes, hoses, and fittings therefor, non-metallic, and valves of rubber; insulation and barrier articles and materials, namely, fiberglass insulation, pipe insulation, acoustical insulation barrier panels, laminated vapor barrier; sealants for joints for building purposes; pipe joint sealing compositions; compounds for jointing; non-metallic pipe linings for sealing pipes