互感器二次负荷及降压校准仪 LYF... 上海来扬电气科技有限公司

p1Src=//y1.yzimgs.com/uploads/4300/2018530-1283968.jpg?watermark/2/text/5LiK5rW35p2l5oms55S15rCU56eR5oqA5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/650/fill/I0E3QTlBOA==/gravity/SouthEast"

aa