quarter-turn ball valve
... quarter-life 四分之一寿命 quarter-turn ball valve 直角回转球阀 quarter-turn belt 直角回转皮带 ...
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进口气动V型球阀是一种直角回转结构的高级控制阀,它与阀门定位器配套使用,可实现比例调节;
Pneumatic V-ball valve is a right angle turn structure of the advanced control valve with positioner supporting the use of proportional control can be achieved;
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