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cold-rolling of steel pipe 【tube】
met.
钢管冷轧
(【技】 钢管冷轧工序是在热轧、挤压或焊接钢管之后对管材进行二次加工以生产精密、薄壁和高机械性能产品的主要方法之一。冷轧管机主要分为二辊式和多辊式。)
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