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金属材料的节约是增产节约运动中的中心环节之一。众具体情况出发，改进产品设计和工艺方法来节约金属材料是节约金属的主要手段。本刊特从本期起开辟“节约金属材料”专栏，介绍各厂设计和冷、热工艺上行之有效的大小经验，使一个厂经验成为各厂财富。欢迎投寄这方面的稿件。
The saving of metal materials is one of the key links in the campaign to increase production and save money. All the specific conditions, improving product design and process methods to save metal materials is the main means of saving the metal. In this issue, we hereby open up the column entitled “Metal Saving Materials” and introduce the effective size and size of each plant’s design and cold and hot technologies to make the experience of one plant a wealth for each plant. Welcome to send this manuscript.