The reason why Guangdong Drug Trading Center can't log in is that there are too many people logging in, which exceeds the maximum number of people accommodated by the server and needs maintenance. According to the relevant public information, Guangdong Pharmaceutical Trading Center Co., Ltd. was established on October 28th, 2003, with its registered address at the 3rd to 5th floors, No.28 Guangming Road, Huaqiao New Village, Huanshi East Road, Guangzhou City, Guangdong Province, and its legal representative is Zhu Yongsheng.