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Mannesmann Grossrohr GmbH and Mannesmann Line Pipe GmbH are supplying pipes for the hydrogen core network in Germany, specifically between Wefensleben and Salzgitter, and Angersdorf and Preußlitz. ONTRAS Gastransport GmbH has awarded the contracts to the Salzgitter Group.

The FGL 702 pipeline will facilitate the production of green steel. MGR will deliver pipes with a diameter of 813 mm, coated with a three-layer polyethylene and epoxy Flowcoat, while MLP will provide 610 mm pipes, also coated to reduce friction losses. Delivery of the pipes will start in February 2027.