7 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