| 摘要 |
2125296 9314005 PCTABS00024 An aerosol valve having a valve ferrule, a valve stem (12) and at least one valve seal (16), in which the valve seal is impregnated with a physiologically acceptable surfactant. The valves of the invention exhibit improved force-to-fire and improved return force compared to valves containing untreated valve seals.
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