 |
| |||
| air nonreturn valve (parable) | |||
| backdraft damper; nonreturn damper; one-way damper; self-closing damper | |||
| обратный воздушный клапан: 4 phrases in 4 subjects |
| Automated equipment | 1 |
| Makarov | 1 |
| Molikpaq | 1 |
| Technology | 1 |
|
| |||
| air nonreturn valve (parable) | |||
| backdraft damper; nonreturn damper; one-way damper; self-closing damper | |||
| обратный воздушный клапан: 4 phrases in 4 subjects |
| Automated equipment | 1 |
| Makarov | 1 |
| Molikpaq | 1 |
| Technology | 1 |