 |
| |||
| gas coal | |||
| gas-coal | |||
| bituminous coal; bottle coal; caking coal; coking coal; light coal; lignitous coal (Kohle mit 75 bis 84 % Kohlenstoffgehalt waf); lomonite-flame gas coal | |||
| gas coal (high-grade bituminous coal) | |||
| gas carbon | |||
|
Gaskohle : 2 фрази в 1 тематиці |
| Гірнича справа | 2 |