Qingdao Donghai Heng Jian Nanometer Technology Co., Ltd.   

Qingdao Donghai Heng Jian nano science and Technology Co., Ltd. is a modern high-tech enterprise integrating research, development, production and sales. It has been working with experts and professors from many universities and famous research institutes in the long run, and has always maintained the leading position in the industry. It mainly manages Han style steamed houses, mobile sweat steaming houses, tourmaline mattresses, self heating AIDS, tourmaline health cups, nano energy cups, male and female underwear, magnet necklace, natural purple sand energy cup, tomarin purple clay cup, medical stone pot, medical stone drinking machine, medical stone cup, medical stone tableware, etc.