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Corliss valves

Corliss valves open directly into the cylinder. The valves connect the cylinder to separate steam and exhaust plenums. Initially, Corliss

Brass instruments

Cylindrical piston valves are used to change the pitch in the playing of many brass instruments.

Brass instruments can be grouped

research for valve industry

Widespread use of the valve industry, metal valves, metal valves for use has been a century of history, although the metal valve through

brass development

Ball valves has a muted yellow color, somewhat similar to gold. It is relatively resistant to tarnishing, and is often used as decoration

brass ball valve's history

Ancient Chinese artifacts, the most widely used and significant brass ball valve differences, different shapes of the incense burner in t

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