... (nanometer grade) Anatase titanium dioxide (nanometer grade)Special surface treatment:Particle is super fine, ... , self-cleaning automobile glass,automobile reflector, glass of curtain wall, screen glass, air purification material, medicaltreatment, cosmetics, fruit preservation, water treatment ... . Package:Small package 1KG/case, 10KG/case, 20KG/case. Anatase titanium dioxide (nanometer grade)