双电源自动转换开关 WATSNA 4P 3... 上海富继电气有限公司

p1Src=//y1.yzimgs.com/uploads/326964/202318-203931133.png?watermark/2/text/5LiK5rW35a-M57un55S15rCU5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/500/fill/I0E3QTlBOA==/gravity/SouthEast"

aa