液氮真空硬管 深圳市澳莱优低温科技有限公司

p1Src=//y1.yzimgs.com/uploads/542067/20201222-185011323.jpg&p2Src=//y1.yzimgs.com/uploads/542067/20201222-185015349.jpg&p3Src=//y2.yzimgs.com/uploads/542067/20201222-185019311.jpg