board ，tourmaline board

     Dissolution and the dissolution of the excitation characteristic electrical stone is a natural electrical Shiyuan mineral cutting into a kind of pure natural green sheet. Tourmaline is a boron containing aluminum, iron, sodium, magnesium, lithium cyclic structure of silicate minerals. Tourmaline has special thermoelectric and piezoelectric in heat, pressure or by other energy will release a large number of negative ions, and water contact of water electrolysis to produce negatively charged hydroxyl ions, so that the water molecules becomes smaller, and enhance the water penetration, reduce water oxidation reduction potential, so that the water is weakly alkaline, but also a variety of trace elements, is widely used in environmental protection, electronic, chemical, textile, ceramics, building materials and other industries.