The 65L liquid nitrogen tank with a diameter of 216mm is particularly suitable for scientific research, animal husbandry and medical industries to store biological samples such as cells, blood, and frozen semen. Summary of advantages: 65L capacity and 216mm diameter design facilitate sampling and improve operational safety. Equipped with 6 square shelves, the total storage capacity of frozen storage tubes reaches 2,400, and the storage plan can be adjusted according to needs. Polyurethane foam neck plug significantly reduces liquid nitrogen volatilization, extends service life and reduces costs. An optional intelligent monitoring system can monitor liquid level and temperature in real time to ensure sample safety. Special transport vehicles can be equipped to facilitate sample movement. 5-year vacuum warranty and CE certification to ensure product quality and safety.