♫ – OFF TOPIC – Materiały ogniotrwałe w hutnictwie. Dodatek do ♫ – OFF TOPIC – Metalurgia 4 (wielki piec)



View of the refractory lining of an abandoned torpedo car once used for hauling molten iron (through its pouring hole). Located at the site of the Carrie Furnace, near Pittsburgh, Pennsylvania, United States. (Źródło: Wikipedia)

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