我局“七·二一”工人大学师生,在局党委领导下,坚持开门办学,从改变邮政通信面貌出发,把教学、生产、科研紧密结合起来,在向锦州局学习的基础上,边学、边设计、边制造,经多次反复实验,克服了设备、材料上的许多困难,苦战四个月,于一九七六年三月试制成功一台CG-1型扎袋机,为邮袋装运流水线、减轻劳动强度创造了条件。 Under the leadership of the party committees under the leadership of the Bureau, teachers and students of the “Workers, Workers, and Workers” of the Bureau of our bureau, insisting on opening schools for running schools, starting from changing the postal communication outlook, closely integrating teaching, production and scientific research, and based on the study from Jinzhou Bureau , While learning, while designing, while manufacturing, after repeated experiments, to overcome the equipment, materials, many difficulties, four months of hard work, in March 1976 trial success of a CG-1 bagging machine , Pouch shipping lines, reduce labor intensity to create the conditions.