| Anode-Baking Furnaces |
| Anode-Drum Furnaces for Cu |
| Combustion Chambers for Tio2 - Rotary Kilns |
| Converters for FeNi |
| Crucible-Type Induction Furnaces |
| Cu-Melting Furnaces |
| Drum-Type Melting Furnaces |
| Drum-Type Melting Furnaces for Pb |
| Electric Reduction Furnaces for FeCr with low C-Content |
| Electric Reduction Furnaces for FeSi,FeCr,FeMn,Si |
| Melting-Holding Furnaces for Al |
| Pierce-Smith-Converters |
| Reverberatory Furnace for Cu |
| Rotary Kiln for Alumina |
| Sic-Columns for Zn-Distillation |
| Slag-Cleaning Furnaces for Cu |
| TiO2 - Rotary Kilns |