接触电流测试仪型号：421A 421A 北京同德创业科技有限公司

p1Src=//y1.yzimgs.com/uploads/378650/20161121-154533874.jpg?watermark/2/text/5YyX5Lqs5ZCM5b635Yib5Lia56eR5oqA5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/500/fill/I0E3QTlBOA==/gravity/SouthEast&p2Src=//y2.yzimgs.com/uploads/378650/20161121-15453845.jpg?watermark/2/text/5YyX5Lqs5ZCM5b635Yib5Lia56eR5oqA5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/500/fill/I0E3QTlBOA==/gravity/SouthEast&p3Src=//y1.yzimgs.com/uploads/378650/20161121-154542341.jpg?watermark/2/text/5YyX5Lqs5ZCM5b635Yib5Lia56eR5oqA5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/500/fill/I0E3QTlBOA==/gravity/SouthEast