限位开关，XCK-J10511C 上海临嘉科教仪器有限公司

p1Src=//y1.yzimgs.com/uploads/391770/20250116-02005395.jpg&p2Src=//y1.yzimgs.com/uploads/391770/20250116-02005395.jpg&p3Src=//y1.yzimgs.com/uploads/391770/20250116-11514419.jpg