Prior to servicing any Watts valve, it is mandatory to shut down the water system by closing both the inlet and outlet shutoff valves.

 
  • 在維修任何美國瓦茨閥門(mén)之前,必須先通過(guò)關(guān)閉進(jìn)口和出口關(guān)閉閥來(lái)實(shí)現水系統的關(guān)閉。
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