Donghai Koken nano science and Technology Co Ltd   

                                  Donghai Koken nano science and Technology Co Ltd is an approved by the relevant departments of the state registration of enterprises. The main mobile Khan steam room, tourmaline mattress, Ms Tomalin underwear, magneto necklace, purple nano energy cup, self heating protector etc.. The company is located in the Yangtze River Road, Shandong District of Huangdao city China Qingdao Qingdao Development Zone No. 467. Donghai Koken nano science and technology limited company in line with "the customer first, the good faith is supreme" the principle, has established the long-term cooperation with many enterprises. Warmly welcome all friends to visit, study, business negotiations.