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. yellow wo3, Cobalt Nanoparticles , Iron Oxide Red Powder , 20-30nm Multi Walled Carbon Nanotubes ,Platinum Catalyst . Customized & ISO certified & Factory prices & Worldwide shipping. Get more feel free to contact us. The product will supply to all over the world, such as Europe, America, Australia,Rome, Riyadh,Australia, Vietnam.If you're planning to order small sample or larger quantities for your industrial or academic needs, please note that customization of parameters are also available, such as size, functionalities, SSA, packages,etc. Contact us get more info.