Each batch of nanoparticles is extensively characterized using techniques including SEM or TEM, XRD, COA, etc. In addition to ensuring that every batch of nanoparticles meets our stringent quality control requirements, customers are provided with batch-specific specification sheets containing representative SEM/TEM images, Coatings, dispersions, and solution pH. ZnO for absorbing material, 99.99% silver , 70nm Tin Nanoparticles , Zinc Nanoparticles ,2nm . Hongwu Nano is a manufacturer specializing in R&D, production and sales of high-quality nanomaterials suitable for various industries. Hongwu Nano has the expertise in the development of nano-material products, and has long-term stable production and supply of various high-quality nano-material products. We provide flexible customized production services to users with high-quality unique products and ensure complete confidentiality. The product will supply to all over the world, such as Europe, America, Australia,Jamaica, Greece,Sierra Leone, Swedish.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.