Kashfiyot
Xizmatlar
Identifikatsiya
Ishlab chiquvchilar uchun
Ekotizim
3 ta ish
Navoi State Mining Institute
Oybek Mustafayev, S. Turdiev
Oybek Mustafayev, Sh.B. Sobirov
Oybek Mustafayev, Muhammad Boltayev