All small forged steel valve joints are tightened with multiple nut runners providing uniform loading and superior zero ppm tightness.

 
  • 所有小型鍛鋼閥門(mén)連接都采用多個(gè)多轉螺母進(jìn)行緊固,以提供均勻壓力和超級零ppm密封性。
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