Tourmaline powder factory offer

Tourmaline powder Colour: black Size: 100-6000mesh Purity: 99.9% Anion release >=20000/cm3 Packing: 25kg, 50kg, 500kg Application: Environmental protection, cigarettes, paint, textile, cosmetics,purifying water quality,air purification, electromagnetic radiation prevention, health care products, Building material, automobile, hone appliance manufacturing and agriculture.