Aqueous formulation for enhancing flowability and setting properties of gypsum, slurries, comprising wax, polyvinyl-alcohol and a sulphonated melamine polycondensate are used for imparting water repellency to gypsum wall boards.

 
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> Use of weakly anionic copolymers as dispersing and/or grinding aid agent of an aqueous suspension of mineral materials

> Metal framing strut with coiled end portions
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