Sand extraction, sand quarry sandpit sand occurrence. Extraction method of alluvium and pump, quarry, sand pit, opencast, opencast mine

Name: Sand extraction, sand quarry sandpit sand occurrence. Extraction method of alluvium and pump, quarry, sand pit, opencast, opencast mine
Uploaded: 2019-10-09
Duration: 12 s
Channel: max5128
Description: Sand extraction, sand quarry sandpit sand occurrence. Extraction method of alluvium and pump, quarry, sand pit, opencast, opencast mine