Tianjin Zhengjian Nano-Tech Co.,Ltd is a High-Tech Group company engaged in Nano Technology Development and Nano & Tourmaline Product Production, Processing and Global Promoting.With the introduction of advanced Technology and excellent Tourmaline Materials from Korea and through the cooperation with our Domestic top University and Institution,we have developed series of Tourmaline Heal-Care products based on the technology of Nano, Infrared Radiation, Aerodynamics, Human biology, Physics and Magneto therapy. Choose Tourmaline Magnetic products, to live a healthy life!