Heavy Clay Kiln Furniture is used in the clay brick and roof-tile industries. Due to the heavy loads involved, this type of kiln furniture has its own special material and structure, with many different shapes to accommodate a wide range of products. The production methods used to manufacture these products are semi-dry pressing, high-pressure vacuum extrusion and pressure casting. Heavy clay kiln furniture can be split into five sub-categories as follows: H-Cassettes, U-Cassettes, Special Cassettes, Viaduct Blocks and Special Shapes.