1. Model:KF10,KF16,KF25,KF40,KF50 NW  Flange Vacuum Fittings Aluminum+SS304 Wing Nut Quick Clamp
  2. Our aluminum alloy bracket is treated by electroplating, otherwise it will rust.
  3. Wing Nut upgrade to Stainless steel 304!
  4. The O-ring is critical for sealing and use,Temperature 150 degrees, hardness coefficient 70 degrees
  5. Only be used in Vacuum tube parts, other places cannot be used.