限位开关，XCKN2149G11C DCP473- 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/391770/20250116-92857742.jpg&p3Src=//y1.yzimgs.com/uploads/391770/20250116-17572062.jpg