| cat.-No. | 2nd category level | results |
|---|---|---|
| 1605 | compressed air accessories | 8 |
| 1602 | compressed air dryers | 78 |
| 1604 | compressed air filtration | 5 |
| 1603 | compressed air tanks | 18 |
| 1601 | compressors | 623 |
| 1607 | other compressed air technology | 27 |
| 1606 | spare parts for compressed air technology | 9 | 1600 | all order by entry date descending | 808 |