• The construction of concentric bi-directional valve overcomes the disadvantage of easy to connect between two parallel check valves.

    同心双向结构克服了传统单向阀并联结构连通缺点

    youdao

  • Metal cock ring soft seat surface pressure to the bearing surfaces, such as the valve core and valve seat is concentric ring surface can be a double tight closure.

    金属旋塞表面阀座支座表面阀座环表面同心的,就能得到双重严密关闭

    youdao

  • Metal cock ring soft seat surface pressure to the bearing surfaces, such as the valve core and valve seat is concentric ring surface can be a double tight closure.

    金属旋塞表面阀座支座表面阀座环表面同心的,就能得到双重严密关闭

    youdao

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定