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Helping The others Realize The Advantages Of valves and fittings

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A grooved fitting, also known as a grooved coupling, has 4 elements: grooved pipe, gasket, coupling housing, and nuts and bolts. The groove is produced by cold-forming (or machining) a groove at the end of a pipe. A gasket encompassed by coupling housing is wrapped around the two pipe finishes, http://martinvbayw.qowap.com/24580358/the-definitive-guide-to-valves-and-fittings

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