拉绳开关型号YG11-820-II 上海临嘉科教仪器有限公司

p1Src=//y1.yzimgs.com/uploads/391770/20230110-14507631.jpg&p2Src=//y1.yzimgs.com/uploads/391770/20230110-25616520.jpg&p3Src=//y1.yzimgs.com/uploads/391770/20230110-34655084.jpg