THE SAND IS READY TO BE FILTERED
53:09
A LUMP OF SOLID FELL IN FRONT OF TWO MINERS
45:48
SEE THE SAND FILTRATION PROCESS FROM A CLOSE DISTANCE
15:27
"Big Rock Crusher Machine: A Giant in Action"Big Rock Crushing: A Powerful Process"#stonecrusher
51:38
LOWERING THE SAND USING AN IRON SPEAR
1:11:54
LOWER THE SAND ON THE CLIFF WHERE THERE ARE HANGING ROCKS
28:27
The workers built beautiful, durable stone bridges
56:52
THE STOCK OF TO BE FILTERED IS RUNNING LOW
1:12:16