拉绳开关，跑偏开关PPKG-10-45，安装方式 上海临嘉科教仪器有限公司

p1Src=//y1.yzimgs.com/uploads/391770/20180123-95279964.jpg&p2Src=//y1.yzimgs.com/uploads/391770/20180123-84497720.jpg&p3Src=//y1.yzimgs.com/uploads/391770/20180123-95279964.jpg