4. Industrial furnaces 4.1. The system of industrial furnaces heating on the bases of regenerative burner.4.2. Energy-saving technology of metallic and non-metal materials heat treatment in indirect radiant heating units.4.3. Gas tubular radiant heater for the heating of thermal furnaces with protective atmosphere.4.4. Small-size tunnel kilns for brick fast firing.4.5. Air-gas mixing heat-generators.4.6. Gas smelting furnaces with submerging burning for mineral melt receiving.4.7. Chamber furnaces with complex heat recovery.4.8. Disk-flame burners for industrial heating furnaces.188.8.131.52.4.11. Energy-saving technology of lime production and burners for it realization.4.12. Burner with operated flame length for tubular rotating furnace.4.13. High-speed burners GNB.4.14. Low-emission flat-flame burners for industrial furnaces.4.15. Gas burner-air-heater.4.16. Modernization of metallurgical furnaces heating systems.