Yixing 3-science ultra-fine powder co.,ltd.is one of the companys specializing in the scicntific research and production of sub-micrometermaterials which can be widely used in many fields for its high performance.so it is said that sub-micrometer manterials are to have preat markel development potenlials in 21th contury.yixing 3-science ultra-fine powder co.,ltd.has strong technical strength.It not only possesses many experienced experts and technicians who have engaged in the reseatch and development of the sub-micrometer materials for a long time ,but also keeps close contacts with many scicntific institutions such as physical department of nanjing university ,china metallurgy department luoyang jnstitute of refractory materials,jiangsu ceramic research institute ete.