4. Electric heating
  5. Metal heating
  6. Of cylinders

Mikhail R. Unigovsky

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Apparatus for removing a welding bulge from pipes

Gear cutting – milling – or planing – Milling – Randomly manipulated – work supported – or work following device
Patent

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Apparatus for removing a welding bulge from resistance welded pi

Gear cutting – milling – or planing – Milling – Means to remove scale or raised surface imperfection
Patent

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Internal resistance pipe butt welder

Electric heating – Metal heating – For bonding with pressure
Patent

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Machine for resistance butt welding of pipes

Electric heating – Metal heating – For bonding with pressure
Patent

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Method for welding girth joints in pipe lines

Electric heating – Metal heating – Of cylinders
Patent

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Profile ID: LFUS-PAI-P-251829

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