FR537737A - Procédé pour fabriquer par centrifugation des tuyaux avec âme en tôle d'acier soudé comprise entre deux revtements en ciment armé
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Procédé pour fabriquer par centrifugation des tuyaux avec âme en tôle d'acier soudé comprise entre deux revtements en ciment armé
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B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
B28B21/00—Methods or machines specially adapted for the production of tubular articles
B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
B28B21/58—Steel tubes
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Manufacturing & Machinery
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Chemical & Material Sciences
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Ceramic Engineering
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Mechanical Engineering
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FR537737D1921-07-011921-07-01Procédé pour fabriquer par centrifugation des tuyaux avec âme en tôle d'acier soudé comprise entre deux revtements en ciment armé
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