Ключевые слова:
Taper threads, Threads, Threaded components, Gas cylinders, Gas valves, Valves, Outlet connections, Gas pressure vessels, Pressure vessels, Gauges, Plug gauges, Thread gauges, Plain gauges, Ring gauges, Dimensions, Dimensional tolerances, Diameter, Angles (geometry), Thread pitch, Acceptance (approval), Verification, Designations, Mathematical calculations