弹簧复位开关 spring-return switch
弹簧复位装置 [机] spring reverse motion
有弹簧复位的限制开关 spring return limit switch
复位弹簧 Returnning spring ; [机] return spring ; pull off spring ; backspring
无弹簧复位带定位作用 OF
回位弹簧.复位弹簧 return spring
弹簧复位的换向阀 spring-return directional valve
缓冲器复位弹簧 buffer return spring
继电器复位弹簧 relay restoring spring
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