Customized & ISO certified & Factory prices & Worldwide shipping. 20nm Co, Bismuth Oxide Nanoparticles , 91% Double Walled Carbon Nanotubes , Au Nanorods Rods ,Alpha Al2o3 . Our main focus is on the nano sized powder and particles. We stock a wide range of particle sizes for 10nm to 10um, and can also fabricate additional sizes on demand. Our products are divided six series hundreds of varieties: the elemental, the alloy, the compound and the oxide, carbon series, and nanowires. The product will supply to all over the world, such as Europe, America, Australia,Johor, Estonia,USA, Czech republic.Customized & ISO certified & Factory prices & fast shipping. Get more feel free to contact us.