Reliable. According to the inquiry, Tianjin He Dieners Group has six wholly-owned subsidiaries, all of which have registered trademarks and obtained the certification from the industrial and commercial departments, so Tianjin He Dieners Group is a relatively reliable company. Tianjin Dieners Group is located in Yintai Building, Yintai Building, Hongqiao District, Tianjin. It is an Internet health industrial chain integrating product research and development, production, sales, education and training, and technical support.