$350.00 (as of 28/12/2017 05:56 PST details )
Features:
- Inner liner is made of high strength aluminum alloy, sturdy and durable.
- Between the liner and the outer liner is a high vacuum, vacuum film with multilayer imported insulation material, therefore has good refrigerating performance.
- Neck plug is made of nontoxic plastic good adiabatic property, it has dual role to reduce the liquid nitrogen evaporation and fixed lifting cylinder.
- Neck tube is enhanced compounds made of glass, it has the extremely low thermal conductivity, can be put into the external heat control at the lowest temperature from cervical canal.
- In a vacuum, part of which is provided with a gas adsorbing agent, it can adsorb gas metal vacuum cavity or other substances volatile out, thus maintaining a high vacuum.