B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
B28B7/00—Moulds; Cores; Mandrels
B28B7/24—Unitary mould structures with a plurality of moulding spaces, e.g. moulds divided into multiple moulding spaces by integratable partitions, mould part structures providing a number of moulding spaces in mutual co-operation
B28B7/241—Detachable assemblies of mould parts providing only in mutual co-operation a number of complete moulding spaces
B28B7/243—Detachable assemblies of mould parts providing only in mutual co-operation a number of complete moulding spaces for making plates, panels or similar sheet- or disc-shaped objects
Plaque de plâtre ou matière analogue pour la construction de cloisons minces, procédé de fabrication de cette plaque et moule pour la mise en oeuvre de ce procédé