To design a variety of valves for water application, such as the butterfly valve, the ball valve, the high performance butterfly valve and the industry valves.
设计了不同应用领域的阀门，如高性能蝶阀、球阀，顺利引入定型蝶阀和工业阀门。
Fisher 8560 Fisher 8560 is a high-performance butterfly valve with a splined shaft for throttling control.
8560是一款高性能蝶阀，可用于绝大多数工况。
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