描述
- ★ Light weight, Easy to carry, Long holding time
- ★ Heat Insulation: Vacuum membrane covered to keep cryogenic function
- ★ Vacuum Design: Has high vacuum space between outer shell and inner vessel
- ★ Highly Vacuum: Equip with gas adsorbent to adsorb other gas, metal and keep a high vacuum environment
- ★ Plug: Non-toxic, good insulativity, lessen the evaporation of liquid nitrogen
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