齐齐哈尔铁路局科学技术研究所于1982年研制成功一种运用于寒冷地区防冻保鲜运输的装置——CM型加温集装箱。结构简单,投资少,小型轻便,贮运效果可靠。在环境温度为-30℃～-42℃时,贮运期7天的鲜菜、鲜果、鲜蛋、针剂药品、水果罐头及其它易冻货物 Qiqihar Railway Bureau Institute of Science and Technology in 1982 successfully developed a cold area used in the preservation of fresh transport equipment - CM-type warming container. Simple structure, less investment, small and light, storage and transportation effect is reliable. In the ambient temperature of -30 ℃ ~ -42 ℃, the storage and transportation of fresh vegetables for seven days, fresh fruit, eggs, injection drugs, canned fruit and other easily frozen goods