Сагс хоосон байна
Oil refinery
Oil refinery
The products of oil refining include diesel oil, petrol and lubricants.
7 – 12-р анги
Түлхүүр үгс
...
mozaLink
/Веб холбоос
Oil refinery
Oil refinery
The products of oil refining include diesel oil, petrol and lubricants.
7 – 12-р анги
Түлхүүр үгс
mozaLink
/Веб холбоос