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| automatic dry chemical powder fire fighting system (Leonid Dzhepko) | |||
| автоматическая порошковая система пожаротушения: 4 phrases in 2 subjects |
| Firefighting and fire-control systems | 2 |
| Production | 2 |
|
| |||
| automatic dry chemical powder fire fighting system (Leonid Dzhepko) | |||
| автоматическая порошковая система пожаротушения: 4 phrases in 2 subjects |
| Firefighting and fire-control systems | 2 |
| Production | 2 |