Código | Descripción |
---|---|
1421 | Operation of gravel and sand pits |
1422 | Mining of clays and kaolin |
Código | Descripción |
---|---|
141 | Quarrying of stone, sand and clay |
Código | Descripción |
---|---|
1421 | Operation of gravel and sand pits |
1422 | Mining of clays and kaolin |
Código | Descripción |
---|---|
141 | Quarrying of stone, sand and clay |