变压器，BK-100VA(铜) 400/24 上海临嘉科教仪器有限公司

p1Src=//y1.yzimgs.com/uploads/391770/20250116-08370075.jpg&p2Src=//y1.yzimgs.com/uploads/391770/20250116-61951739.jpg&p3Src=//y1.yzimgs.com/uploads/391770/20250116-99296942.jpg