Overview: Overview:Portable storage series is an economical and practical small liquid nitrogen tank specially designed for biological samples that need to be stored regularly. The series is small in size and light in weight It is made of high strength Ight aluminium alloy and contans mu-layer super-strong heat insulation layer.Itrealizes the safety, lightness and efficency of the product and has many accessories to choose from. Product Features： ① High strength, light weight, small size aluminum structure; ② Equipped with belt; ③ Ultra-low evaporation loss; ④ Number coding for canister place; ⑤ Lockable lid is optional to prevent unauthorized open; ⑥ CE certified; ⑦ Five years vacuum warranty;