双止回阀总成用于低危险交叉连接和持续压力应用场合。
DOUBLE CHECK VALVE ASSEMBLY For Low Hazard Cross-connections and continuous pressure applications.
双止回防回流阀用于低危险交叉连接。持续压力应用场合。
DUAL CHECK VALVE BACKFLOW PREVENTER For low hazard cross-connections. Continuous pressure applications.
双止回防回流阀用于低危险交叉连接。持续压力应用场合。
DUAL CHECK VALVE BACKFLOW PREVENTER For low hazard cross-connections. Continuous pressure applications.
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