B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
B28B1/00—Producing shaped prefabricated articles from the material
B28B1/30—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon
B28B1/40—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon by wrapping, e.g. winding
B28B1/42—Producing shaped prefabricated articles from the material by applying the material on to a core or other moulding surface to form a layer thereon by wrapping, e.g. winding using mixtures containing fibres, e.g. for making sheets by slitting the wound layer