SL-AY508V"变频选频法"埋地管道绝缘电阻测试仪 SL-AY508V
上海徐吉电气有限公司
p1Src=//y3.yzimgs.com/uploads/409290/2016728-91939657.jpg&p2Src=//y1.yzimgs.com/uploads/409290/2016728-9194664.jpg&p3Src=//y3.yzimgs.com/uploads/409290/2016728-91951943.jpg