The company is mainly engaged in the detection and maintenance of building fire-fighting facilities, fire safety detection and fire safety evaluation of automatic fire alarm system, automatic sprinkler system, indoor and outdoor fire hydrant fire extinguishing system, water spray fire extinguishing system, various gas fire extinguishing systems, combustible gas alarm system, smoke control system, fire broadcasting system, fire communication system, fire elevator system, fire emergency lighting and safety evacuation indication system, and establishes customer fire files to form a complete service system.