Ball check valve A too narrow sealing surface of the lamella combined with the improper material quality of the lamella is the main cause affecting the annular scars on the safety value.

  • 阀瓣密封面过窄与阀瓣材质的选择不当,是影响安全阀环形伤痕的主要原因。

  • 互联网摘选 2025-01-20 11:50:17

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