SDKG-155型真空开关真空度测试仪... 上海徐吉电气有限公司

p1Src=//y1.yzimgs.com/uploads/425174/201641-101755269.png?watermark/2/text/5LiK5rW35b6Q5ZCJ55S15rCU5pyJ6ZmQ5YWs5Y-4/font/5a6L5L2T/fontsize/400/fill/I0E3QTlBOA==/gravity/Center"

aa