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. The item "20L Liquid Nitrogen Tank Cryogenic LN2 Container Dewar with Straps Y" is in sale since Saturday, January 4, 2020.This item is in the category "Crafts\Other Crafts". The seller is "yalon-bay" and is located in CN,CN. This item can be shipped worldwide.