hex nipple
常見(jiàn)例句
- The hex nipple or connector housing design allows for ease in installation either as a check valve, vacuum breaker or low-pressure relief valve.
螺紋接套或封裝式連接使得閥門(mén)無(wú)論用作止回閥、真空破壞器，還是用作低壓泄壓閥都更為方便。
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