原理JSB-KPP-Z,拉绳开关,跑偏开关
上海临嘉科教仪器有限公司
p1Src=//y1shangxu.yzimgs.com/uploads/391770/20180123-43038628.jpg&p2Src=//y1shangxu.yzimgs.com/uploads/391770/20180123-41825419.jpg&p3Src=//y1shangxu.yzimgs.com/uploads/391770/20180123-02636742.jpg