FR1067273A - Perfectionnements apportés aux tuyères (busillons) refroidies pour des fours de fusion, plus spécialement des hauts fourneaux
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Perfectionnements apportés aux tuyères (busillons) refroidies pour des fours de fusion, plus spécialement des hauts fourneaux
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FR1067273D1951-12-111952-11-28Perfectionnements apportés aux tuyères (busillons) refroidies pour des fours de fusion, plus spécialement des hauts fourneaux
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