HONGWU has had the pleasure of helping academic researchers and industry innovators alike reach their goals by providing excellent materials and expertise. Silicon dioxide nano powder, Gold Nano Powder , 20nm Tin Oxide Nanoparticles , Super Long Silver Nanowire ,Copper Oxide Nanopowder . ( MWCNT, nano Si, nano Ge etc for betteries; nano Fe for sewage treatment, etc ) The product will supply to all over the world, such as Europe, America, Australia,Melbourne, Istanbul,Zurich, Montreal.Customized & ISO certified & Factory prices & Worldwide shipping. Get more feel free to contact us.