Plastic tubing for aerospace mechanical systems encompasses rigid and semi-rigid conduits manufactured from engineering polymers such as PTFE, PEEK, nylon (PA), and PVDF, used to route fluids, gases, and pneumatic signals in low-to-medium pressure applications; fabrication methods include extrusion and mandrel forming, with tubes qualified to AS/NAS standards for dimensional tolerances, chemical resistance, and flammability compliance per FAR 25.853.
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