Cold accumulation material for ultra-low temp., refrigerating machine using the material and heat shield material
Cold accumulation material for ultra-low temp., refrigerating machine using the material and heat shield material
- CN 1,195,815 C
- Filed: 10/30/1997
- Issued: 04/06/2005
- Est. Priority Date: 10/30/1996
- Status: Active Grant
- EN CH
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- Pin
