Customized & ISO certified & Factory prices & Worldwide shipping. Needle shape Al2O3, Nano Silver Colloid , Vanadium Oxide Nanoparticles , 2-5nm ,Sic Whiskers . 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,Algeria, Iraq,Bandung, Finland.Customized & ISO certified & Factory prices & fast shipping. Get more feel free to contact us.