... ball valve oiler 球状阀注油器... release valve ball 旁通球阀 equilibrium ball valve 平衡球阀 ...
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A set pre-sized diverter chamber with a free-floating ball and seat incorporating a flow control release valve is the optimum diversion unit.
前一组巨细与自在浮动球，并归入一个流量节制释放阀座转向器商会是最佳分流单元。
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