Worldwide distributor of NSN parts and consumables located in the USA.
A prefabricated item consisting of permeable elastic fabric stretched on a metal frame, for installation in passageways of a pressurized chemical, biological or radiological protective shelter. The item is designed to maintain a constant air pressure differential between rooms, and/or allow ingress or egress of personnel without excessive loss of air pressure. The door may have lapped edges or abutting surfaces when installed.
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