септик Волгарь - тестирование на производстве
Тестирование станции автономной очистки сточных вод Волгарь на производстве.
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![[Септик Волгарь] Принцип работы установки Волгарь](https://sun9-6.userapi.com/s03g3kzoOhphOYztoPNvf_5Z6c1KdfyKmXr8Jw/PqRraHVbc0k.jpg)
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