 |
| |||
| safety valve (на газопроводе Leonid Dzhepko) | |||
| SDV (MichaelBurov); shutdown safety valve (MichaelBurov); shutdown valve (MichaelBurov) | |||
| break valve | |||
|
| |||
| safety valve (на газопроводе Leonid Dzhepko) | |||
| SDV (MichaelBurov); shutdown safety valve (MichaelBurov); shutdown valve (MichaelBurov) | |||
| break valve | |||
