The self pressurized liquid nitrogen tank produced by our company has the advantages of structure, and the top adopts double full valve structure to ensure the safe use of the equipment; the tank body adopts unique design support to realize the stable performance of the product, with low evaporation capacity; the whole body is made of 304 material, multi-layer high vacuum technology, with high pressure and fall resistance; the upgraded KF sealing neck can be selected for customers, and the evaporation capacity is relatively low All welds are detected by helium spectrometer to ensure the vacuum performance of the tank..