6
Cyclones, in particular water cyclones; drain pipes of metal; jets of metal (nozzles of metal); flanges (flanges of metal, collars of metal); pipe connections (junctions of metal, for pipes); sleeves (metal hardware); containers (containers of metal (storage, transport)); sleeves (metal hardware); pipes (pipes and tubes of metal); elbows for pipes (elbows of metal for pipes); sleeves for pipes (pipe muffs of metal); tanks (tanks of metal); water-pipes (water-pipes of metal)
7
Papermaking machines and parts therefor; cyclones and machines for making cyclones; machines for shaping sheet metal; filtering machines; grinders (machines); metal-working machines; presses; robots (industrial robots: robots (machines)); finishing machines; sharpening machines; lathes (machine tools), welding machines (electric); printing rollers for machines; cylinders (drums (parts of machines)); processing machines (apparatus for machine processing); washing installations for vehicles; vacuum pumps; water separators; tools (parts of machines); holding devices for tools (holding devices for machine tools); steam generators and evaporators (parts for machines)
11
Evaporators; desalination plants; dust removing installations for industrial purposes; filters for drinking water; gas scrubbers (parts of gas installations); sewage treatment installations (purification installations for sewage); clarifying installations; air purifying installations (air filtering installations), apparatus and machines (air purifying apparatus and machines); tanks (flushing tanks and pressure water tanks), installations for the treatment and distribution of water (control fittings and safety accessories for water or gas apparatus and pipes, water distribution installations, water filtering apparatus, water supply installations, water conduit installations, water purifying installations, water purifying apparatus and machines); water recirculating devices
37
Installation and repair of irrigation devices; washing of automobiles; washing of vehicles; motor-vehicle washing; servicing and maintenance of machines (installation, maintenance and repair of machines); installation, maintenance and repair of devices for recycling water
40
Recycling and re-use of waste (recycling of waste and rubbish); material treatment information; material; metal treatment
41
Providing of education and information (arranging and conducting of colloquiums, conferences, congresses, seminars and symposiums: education, education information)
42
Scientific and industrial research (research and development for others and mechanical research), in particular with regard to cyclones and water cyclones and the clarifying of sewage; destruction and separation of waste (destruction of waste and rubbish)