Nanjing fire-fighting Equipment Co. , Ltd. (hereinafter referred to as China Southern Fire) , founded in the 1958(formerly known as Nanjing fire-fighting Equipment Factory) , is located in Nanjing Jiangning National High-tech Industrial Park, the registered capital of 160 million yuan. Is a research and development of design-product manufacturing-testing-product sales-engineering construction-service training complete industrial chain of domestic fire enterprises, is a high-tech enterprises. China Southern has a complete after-sales service system. China Southern Energy has established Nanjing Huineng Huilian fire-fighting Technology Co. , Ltd. (hereinafter referred to as Huineng Huilian) to tie in with the continuous expansion of its business network. Huineng Huilian has a group of skilled and experienced technical service personnel and a number of strong and brave, hard-working maintenance service teams; it has a large number of special engineering testing and construction machinery for fire-fighting system maintenance, equipment cleaning, calibration, testing equipment. Huineng Huilian in the northeast, northwest, southwest, South China, Central Plain and other 12 regions of the country to set up maintenance center, combined with the application of the Internet of things fire technology, to be able to respond to the feedback of users around the country within 1 hour. At the same time, the establishment of user file management and regular return visit mechanism to provide customers with various types of fire system after-sales service, system testing, maintenance, repair, engineering transformation and other professional services. At the request of the Fire Department of the Ministry of Public Security, china Southern Fire has developed a special complete set of equipment for building (structure) building firefighters professional appraisal station, which is a simulation system for building fire fighting facilities and is specially used for assessing the practical operation skills of fire fighting appraisers, these equipments can not only meet the requirements of professional skill identification for building firefighters, but also meet the needs of professional skill training for building firefighters. The professional appraisal equipment for building firefighters is mainly composed of fire water supply facilities, fire hydrant system, automatic sprinkler system, foam fire extinguishing system, gas fire extinguishing system, smoke control and exhaust system, fire communication system, fire broadcasting system, emergency lighting and evacuation system, fire separation facilities, fire automatic alarm system and so on. The testing and testing system of NCC has always been in the forefront in China.