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The QTCV-T1 trunnion-mounted rotary control valve designed for general control valve service.
T1 型装有底轴的旋转控制器是用来为普通控制阀服务的。
youdao
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The QTCV-T1 trunnion-mounted rotary control valve designed for general control valve service.
T1 型装有底轴的旋转控制器是用来为普通控制阀服务的。
youdao