L-D Kaldo converter of 35 tons, combining the features of the two designs (Cockerill-Sambre Marchienne).
<a href="https://en.wikipedia.org/wiki/European_Commission" class="extiw" title="en:European Commission">European Commission</a>, <a href="https://en.wikipedia.org/wiki/European_Coal_and_Steel_Community" class="extiw" title="en:European Coal and Steel Community">European Coal and Steel Community</a>
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