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.

youdao

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.

youdao