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Industrial Ventilation and Indoor or Outdoor Air Pollution Control Systems and equipment such as any kind of custom exhaust hood or flexible * extraction arm (FLEXARM) or fan or duct or electrostatic filter or cartridge filter and Machinery Oil Mist and Grinding Dust and Welding Fume Extraction and Filtration Systems,Mobile and Transportable Systems Structure with Clinic or Hospital or Medical or Surgical or Military or Army or government application and Off-road ambulance and Tropical and Military Air Conditioner Systems,Double Expandable Trailers and Double Expendable Container and 3in1 Expandable Container and Command Post Expandable Trailer or Container,High Vacuum Systems and Adjustable Vacuum Dust Extraction Hose,NBC Emergency Filtration Systems and NBC Emergency Human Decontamination Systems and HAZMAT Incident Management Systems and Industrial or Army (Military) Shelter and Human Safety mask

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