拉绳开关，跑偏开关KLB-T-Z，图片 上海临嘉科教仪器有限公司

p1Src=//y1shangxu.yzimgs.com/uploads/391770/20180123-86461951.jpg&p2Src=//y1shangxu.yzimgs.com/uploads/391770/20180123-55978317.jpg&p3Src=//y1shangxu.yzimgs.com/uploads/391770/20180123-66432508.jpg