变压器，BK-200VA(铜) 220/110 上海临嘉科教仪器有限公司

p1Src=//y1.yzimgs.com/uploads/391770/20250116-11514419.jpg&p2Src=//y1.yzimgs.com/uploads/391770/20250116-40805395.jpg&p3Src=//y1.yzimgs.com/uploads/391770/20250116-19074720.jpg