KU-126 tüübi veetoru katla-utiliseerija paigaldamine horisontaalasendist vertikaalsesse asendisse VKG OIL AS põlevkiviõli tootmisettevõttes Petroter-1 tehnoloogia järgi
Remounting of a recovery water-tube KU-126 type boiler from a horizontal position to a vertical one at VKG OIL AS plant by the Petroter-1shale oil distillation technology