Dongfang Wang

Coal reducing gas direct reduction metallurgical process in gas-based shaft kiln and system

Low-calorie fuel dual prewarming and thermal storage type energy-saving boiler

Coal-based direct reduction iron rotary hearth furnace and combustion method thereof

High performance fuel heat accumulation type condensation energy-saving boiler

Low grade fuel single prewarming and thermal storage type condensation energy-saving boiler

Single heat accumulation type steam-filling boiler using liquid fuel, and its combustion method

Low-grade fuel dual prewarming and thermal storage type condensation energy-saving boiler

Heat accumulating combustion tube type gas heating furnace

Regenerative melting furnace and method thereof for smelting black, colored or non-metallic ores

Low-grade fuel single prewarming and thermal storage type energy-saving boiler