Official website introduced that a professional friend, Beijing Sifang Jibao Automation Co., Ltd. (hereinafter referred to as Sifang) is a national high-tech enterprise, enterprise technology center and listed company established in 1994. Sifang Co., Ltd. currently employs about 4,000 people, including about 1000 technical R&D team, with total assets exceeding 5 billion yuan, and has several R&D and production bases in Beijing and Han. Judging from the number and scale of employees, it is a big factory.