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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
B28B21/60—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements
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Manufacturing & Machinery
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Ceramic Engineering
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Mechanical Engineering
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Rigid Pipes And Flexible Pipes
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FR1069678D1951-07-261952-07-25Procédé de fabrication d'un tuyau précontraint au moyen d'eléments préfabriqués et produits obtenus
ExpiredFR1069678A
(fr)