4. Metal deforming
  5. By tool-couple pressing together adjacent surface portions...
  6. To form longitudinally-seamed tube

Feizhou Wang

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Method for roll forming steel pipes, and equipment for same

Metal deforming – By tool-couple pressing together adjacent surface portions... – To form longitudinally-seamed tube
Reexamination Certificate

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Square tube forming roll, square tube forming method, and...

Metal deforming – By use of roller or roller-like tool-element – Included in roller-cluster
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2020235

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