22-30mm 直径开孔，按钮开关
可配置元件，主体 按钮，圆形 发光
得捷:
ILLUMINATED MOMENTARY PUSHBUTTON
欧时:
Switch Series 04 Mom pushbutton body
贸泽:
Switch Actuators ACT SLEEVE-RND MOM
艾睿:
Switch Access Push Button Switch Round Actuator
Allied Electronics:
Push Button Switch; IP65; 30.5mm; PanelMount; Momentary; Illuminated