What is the relationship between Tianjin Chaosi and Beijing Chaosi?

The legal representatives of Tianjin Chaosi and Beijing Chaosi belong to Qian, and they are both companies. According to relevant public information, Beijing Chaosi Electronic Technology Co., Ltd. was established on August 1993, and Tianjin Chaosi Medical Equipment Co., Ltd. was established on February 5, 20 18. Both companies are money.