Vacuum adiabatic tube technical design and characteristics 1, the inner tube at liquid nitrogen temperature, shrinkage rate of 0.3% , for rigid tube, set the necessary compensator; 2. Install high vacuum multi-layer adiabatic cryogenic globe valve, check valve, emergency shut-off valve and safety relief system in the pipeline; The inner and outer tubes are all made of Austenitic stainless steel 06Cr19Ni10(or custom-made) . Advanced multi-layer insulation materials and gas adsorbents are used in the interlayer. The supports with low thermal conductivity are used in many industries such as industrial gases, medicine, biology, electronics, aviation, automobile and beverage. The transport media are liquid nitrogen (Lin) , liquid argon (LAr) , liquid oxygen (LOX) and liquefied natural gas (LNG) .