… Air or vacuum pumps, air or other gas compressors and fans; …
Explanatory notes
… 84.14 - Air or vacuum pumps, air or other gas compressors and fans; … gases, or for creating a vacuum, and also machines for circulating air or other gases. (A) PUMPS AND COMPRESSORS In … In addition, however, there are certain special types, particularly for producing high vacua, such as diffusion …