磁性开关说明书CS1-G 上海临嘉科教仪器有限公司

p1Src=//y1shangxu.yzimgs.com/uploads/391770/20171225-98311640.jpg&p2Src=//y1shangxu.yzimgs.com/uploads/391770/20171225-04354497.jpg&p3Src=//y1shangxu.yzimgs.com/uploads/391770/20171225-65249739.jpg