限位开关，D5A-3210 ASM840- 上海临嘉科教仪器有限公司

p1Src=//y1.yzimgs.com/uploads/391770/20250116-61951739.jpg&p2Src=//y1.yzimgs.com/uploads/391770/20250116-61951739.jpg&p3Src=//y1.yzimgs.com/uploads/391770/20250116-38628428.jpg