tayyorishlar

Mahsulot tavsifi

Study on improving the technology of extracting buried gold cones, focusing on the geological and technical characteristics of gold cones and the efficient methods of extraction

#konchilik ishi#qazib olish texnologiyasi#kovuldi oltin koni

Muallif

Hadyatillo Omonjonov
Hadyatillo OmonjonovTasdiqlangan muallif
Hujjatlari
307
Sotilgan
18

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