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Drywall (also called plasterboard, dry lining, [1] wallboard, sheet rock, gib board, gypsum board, buster board, turtles board, slap board, custard board, gypsum panel and gyprock) is a panel made of calcium sulfate dihydrate , with or without additives, typically extruded between thick sheets of facer and backer paper, used in the construction ...
Gypsum recycling in Europe was started by the Danish company Gypsum Recycling International A/S Archived 2013-12-02 at the Wayback Machine in Denmark, in 2001. After a few years the recycling system received waste from approximately 85 per cent of all public civic amenity/recycling centres and a recycling rate of 60 per cent of all gypsum waste ...
BPB Ltd (formerly BPB plc) (British Plaster Board) was a British building materials business. It once was a constituent of the FTSE 100 Index. [citation needed] In 2005, the company was purchased by Saint-Gobain of France.
Reynolds 531 (pronounced 'five-three-one') is a brand name, registered to Reynolds Technology of Birmingham in the United Kingdom, for a manganese–molybdenum, medium-carbon steel tubing that was used in many quality applications, including race car chassis, aircraft components and, most famously, bicycle frame tubing.
Each horizontal course of lath is spaced about 3 ⁄ 8 inch (9.5 mm) away from its neighboring courses. Metal lath is available in 27-inch (69 cm) by 8-foot (240 cm) sheets. In Canada and the United States the laths were generally sawn, but in the United Kingdom and its colonies, riven or split hardwood laths of random lengths and sizes were ...
A tube can be bent in multiple directions and angles. Common simple bends consist of forming elbows, which are 90° bends, and U-bends, which are 180° bends. More complex geometries include multiple two-dimensional (2D) bends and three-dimensional (3D) bends. A 2D tube has the openings on the same plane; a 3D has openings on different planes.
The plaster sets, usually in about 15 minutes, and the pattern is removed. The mold is then baked, between 120 °C (248 °F) and 260 °C (500 °F), to remove any excess water. The dried mold is then assembled, preheated, and the metal poured. Finally, after the metal has solidified, the plaster is broken from the cast part.
Molten metal before casting Casting iron in a sand mold. In metalworking and jewelry making, casting is a process in which a liquid metal is delivered into a mold (usually by a crucible) that contains a negative impression (i.e., a three-dimensional negative image) of the intended shape.