Application standing indoor long bull semen, embryos, stem cells, skin, internal organs, vaccines, laboratory specimens are preserved, the mechanical components of the cooling and cooling, cold therapy for hospital use Features The series of products with small size, light weight, easy to carry, compact and lightweight, static storaqe on low nitrigen consumption, cost-effective advantages. 1.The use of high-strength aluminum air, so light weight products. 2.Products easy to long-term preservation of biological specimens, preservation of animal semen, vaccines biomedical areas/species/cell. 3.Itis equipped with protective cover, to prevent the use of the bump, bruises. 4.Cylinder can be numbered to facilitate the identification and independent access to the safety of storage of samples. 5. According to the needs of users with lock cover to protect the sample containers for storage security. 6. High-vacuum multi-layer thermal design to provide no less than five years to ensure that the vacuum.