Brief introduction Yellow tungsten oxide (YTO), Blue tungsten oxide (BTO) Violet tungsten oxide (VTO) Appearance: blue, yellow or violet crystal powders without obvious lumps and foreign matters. Application 1. WO3 is high quality Building construction material. 2. Tungsten oxide powder can be widely used in gas sensor, catalytic, especially catalyst light. 3. Yellow WO3 used as a coloring agent in yellow ceramics. 4. The X-ray shielding and fireproof fabric. 5. Senior paint, paint watercolors. 6. WO3 is gas sensing materials. 7. Petrochemical catalytic or auxiliary catalyst,hydrogenation dehydrogenation, oxidation, hydrocarbon many reactions, such as isomerization, alkylation has good catalystic performance, which is a petrochemical the common use of catalyst.