This paper introduces how the old enterprise of quantitative benefit with a history of 75 years has gradually changed into one of the structural benefit type by applying new processes, new technology;

本文介绍了具有75年历史的老企业，应用新工艺、新技术，注重技术改造，加强管理，使一个典型的产量效益型企业，逐步转化为结构效益型企业。

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