| |||
| шлейф оповещения (Elena_S) | |||
|
alarm notification circuit : 2 phrases in 1 subject |
| Firefighting and fire-control systems | 2 |
| |||
| шлейф оповещения (Elena_S) | |||
|
alarm notification circuit : 2 phrases in 1 subject |
| Firefighting and fire-control systems | 2 |