automatically controlled rolls and drums of metal or plastics for hoses, cables, ropes and wires; exhaust rails, exhaust rails with movable gas passage units, rails for hoses, cables, ropes and wire, parts and accessories therefor; machines for manufacturing air filter elements, parts therefor; machines for manufacturing air suction units comprising carrier arms with air hoses with suction pipes and for manufacturing parts therefor; machines for manufacturing air suction devices comprising pipes or drums and for manufacturing parts therefor; machines for manufacturing hoses for air transport; machines for manufacturing air suction passages with trolleys for exhaust hoses and for manufacturing parts therefor; machines for manufacturing hose and cable drums; machines for manufacturing air suction nozzles
Machineryheat exchangers; fume, gas and exhaust extractors; filters for dust, smoke and unhealthy gases, preferably filters for fume, gas and exhaust extractors; electrostatic filters; cyclones; baghouse dust collectors; filter bags, filter tubes and filter housings; filter cleaning units, including automatic filter cleaning units; units for sensing changes in the filtering effect of gas filters; fans for fume, gas and exhaust extractors; fans and blowers for filters and filter units; hoses and hoods for fume, gas and exhaust extractors
Environmental Control Apparatus