 |
| |||
| gas damper; sliding flue damper; smoke flue damper | |||
| gate-type gas-regulating valve; smoke flue damper | |||
| газовый шибер: 3 a las frases, 2 temas |
| Industria energetica | 2 |
| Ingenieria termal | 1 |
|
| |||
| gas damper; sliding flue damper; smoke flue damper | |||
| gate-type gas-regulating valve; smoke flue damper | |||
| газовый шибер: 3 a las frases, 2 temas |
| Industria energetica | 2 |
| Ingenieria termal | 1 |