In a hangar 600 meters long where a continuous and deafening noise reigns, smoke and flames escape from the continuous hot train, a huge metal workshop in which parallelepipeds of steel 20 to 25 cm thick , called slabs, are heated to over 1200°C and rolled to end up in coils. Every day, 20,000 tonnes of steel leave the ArcelorMittal factory in Dunkirk (North), the steelmaker’s largest in France. Equipped with a touch pad, managers and auditors supervise the production lines to ensure compliance with safety standards or to control a maintenance operation. Information transmitted in real time to the “cockpit”, the operations monitoring centre.
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