Shenzhen Grenfell Dental Medical Management Company Limited was established on October 17, 2011 . Legal representative Zhang Hongtu, the company's business scope includes: general business items are: the second class of medical equipment business; oral medical equipment research and development; investment management (excluding securities, futures, insurance and other financial services), entrusted asset management (excluding insurance, securities and banking), business management consulting (excluding talent intermediary services); domestic trade and so on.