常闭按钮开关的英文

• normally closed push button switch

• 常闭:    normal close
• 按钮开关:    press-button switch; button ...
• 常闭铵钮开关:    normally closed push button switch
• 按钮开关:    bs button switch; buttonswitch; face contact; pb push button; press button key; press button switch; press stopper; push button switch; push contact; push switch; pushbutton actuator; pushbutton key; pushbutton switch
• 按钮开关盒:    push-button switch box