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該系列是一種閥板為部分球面的偏心角行程調節閥，與球型調節閥相比較，具有小型量輕、閥容量大、可調比高等特點。

This series provides eccentric segmental ball valves for modulating application. Comparing to globe valves, the body is compact, light weight, and yet it has large Cv value and large rangeability.