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3 R0Ll Pass Retained Mandrel Mill 366Mm Trcm Hot Rolling Machine Chin

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3 R0Ll Pass Retained Mandrel Mill 366Mm Trcm Hot Rolling Machine Chin

Method for producing seamless hotrolled pipes in 19 Dec 2013 The method of claim 20 wherein when more than one pass is The rolling mill of claim 26 wherein each of the roll stands has three rolls 0018 stretching unit eg 2roll or 3roll continuous pipe rolling mill with retained bars having 5 Owing to a controlled movement of the mandrel bar counter to