The nozzle equipment is at the bottom of the valve seat; the valve spool has a balancing hole; the valve spool bush has an orifice.

  • 喷嘴装置在阀座下端,阀芯设置有平衡孔,阀芯套开设有节流孔。

  • 互联网摘选 2025-01-20 11:50:12

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