1. Coal industry: Coal is the traditional fuel for thermal power generation.
2. Power generation: Thermal power plants generate steam by burning coal, oil or natural gas to drive turbine generators to generate electricity.
3. Catering industry: restaurants, hotel kitchens, baking shops, etc. These industries use a large number of fire sources for heating and cooking during food preparation.
4. Safety protection and fire protection industry: R&D and production of fire extinguishers, fire engines, fire-proof materials and other products, as well as fire safety services.