4. Metal treatment
  5. Compositions
  6. Heat treating

Friedhelm Retzlaff

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Method and apparatus for continuous production of tubular bodies

Electric heating – Metal heating – By arc
Patent

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Method of making high strength steel tube

Metal treatment – Compositions – Heat treating
Patent

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Method of making high strength steel tube

Metal treatment – Compositions – Heat treating
Patent

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Use of the laser welding process for and method of manufacturing

Electric heating – Metal heating – By arc
Patent

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Profile ID: LFUS-PAI-P-667622

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