|
Bucket-wheel exca..
7s
|
Coal mine with bu..
11s
|
Bucket-wheel exca..
10s
|
Coal mine with bu..
7s
|
|
Coal mine with bu..
12s
|
Coal pit with bel..
7s
|
Coal pit for brow..
9s
|
Coal train with l..
15s
|
|
Coal pit with fre..
6s
|
Belt conveyor in ..
4s
|
Workers in coal p..
8s
|
Brown coal in coa..
7s
|
[0] 0.-
