保证黑色血液畅通的人们臧铁军在钢铁大动脉东北管道的龙头，有这样一位“老八路”，带着领章帽徽来参加会战，管道建成了，他脱下了军装又穿上了“垄沟棉袄”，留在了荒凉的小站。２５年过去了，他在儿子大学毕业前夕，给儿子写了一封信，信中说：“儿子，回来吧！小站需... Ensure that black blood unobstructed people Zang Tiejun northeast pipeline in the steel artery leading, there is such an “old eight road”, with a cap badge to attend the battle, the pipeline was completed, he took off his uniform and put on the “fur ditch jacket” , Stay in a desolate station. 25 years later, on the eve of his son’s college graduation, wrote a letter to his son, the letter said: "Son, come back!