hello, i am john from China, and i am in industry of ultra low temperature freezer. if there is someone in the same job with me?:):):) really hope to talk about this technology with you guys.
http://a2.qpic.cn/psb?/V14Ps7KJ04CNw...c!&rf=viewer_4
http://a3.qpic.cn/psb?/V14Ps7KJ04CNw...c!&rf=viewer_4