Customized & ISO certified & Factory prices & Worldwide shipping. spherical copper powder, Ato , Ag 100nm , Purple Tungsten Oxide Nanoparticles ,80-100nm Zirconium Oxide Nanoparticles . Hongwu focus on R&D, production, supply and after-sales of nano particles. Our company is established in 2002, with manufacture base locates in Xuzhou city, Jiangsu province china, is among China’s earliest companies enter into nano particles advanced material industry. The product will supply to all over the world, such as Europe, America, Australia,India, Stuttgart,Azerbaijan, Sacramento.For more information, just kindly contact us. If you have anything you want to know, we will do our best to answer for you. We can't wait to partner with you.