 |
| |||
| dust collection by exhaust ventilation; dust extraction by exhaust ventilation; dust extraction by suction | |||
| captage pneumatique: 4 phrases in 1 subject |
| Mechanic engineering | 4 |
|
| |||
| dust collection by exhaust ventilation; dust extraction by exhaust ventilation; dust extraction by suction | |||
| captage pneumatique: 4 phrases in 1 subject |
| Mechanic engineering | 4 |