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由西安重型机械研究所和上钢五厂共同研究开发的φ55～φ130mm合金钢棒材七辊矫直机于1990年11月通过了机电部和冶金部联合组织的技术鉴定。φ55～φ130mm合金钢棒材七辊矫直机的研究开发是针对冶金部提出的合金钢材以国际质量标准组织生产,使产品质量达到国际先进水平的要求,在上钢五厂工艺和使用部门紧密配合下完成的。该矫直机经过九个
The φ55 ~ φ130mm alloy steel bar seven-roller straightener jointly researched and developed by Xi’an Heavy Machinery Research Institute and Shanghai Iron and Steel Co., Ltd. passed the technical appraisal of the joint organization of Electromechanical Department and Metallurgical Department in November 1990. φ55 ~ φ130mm alloy steel bar seven roller straightening machine research and development for the metallurgical department put forward the alloy steel to international quality standards of production, the product quality to meet international advanced level requirements, the five plants in the steel process and the use of the department close Completed with the cooperation. The straightener passes nine