| http://www.w3.org/ns/prov#value | - Preferably, the gypsum composition strip is preformed by a casting technique, i.e., a technique in which an aqueous slurry of the ingredients is delivered onto a moving belt, for example of the kind employed in the manufacture of gypsum wallboard, and the slurry is dried by application of heat, the quantity of the ingredients above referred to being given for the set and dry composition.
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