Warning: file_put_contents(/www/wwwroot/ppbbu/73904.com/cache/838c3c67c1d041159b1f211482243fdb.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/73904.com/index.php on line 55 hex nipple例句_hex nipple英汉例句_hex nipple双解例句_骑士汉英词典
The hex nipple or connector housing design allows for ease in installation either as a check valve, vacuum breaker or low-pressure relief valve. 螺纹接套或封装式连接使得阀门无论用作止回阀、真空破坏器，还是用作低压泄压阀都更为方便。 www.e-gtm.com.cn