controlled rolling and cooling technology
controlled rolling and cooling technology
控制轧制和冷却技术
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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S450 hot rolled strips for line pipe is researched and developed through the technology microalloying, ASP and the processes of controlled rolling and controlled cooling in Jinan Iron and Steel co.
利用微合金化技术及ASP连铸连轧工艺和控轧控冷工艺，济钢自主研发了S450热轧管线钢带产品。
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