RBST is a professional company specialized in high-purity alumina powder and related products research and development, production, marketing, and technical support services. Independent research and development of process technology to the preparation of high purity and ultrafine alumina powder, the production process compared with other traditional production process has a purification process control, low cost, large production capacity, stable quality, environmentally friendly. Our products features with controlled high purity, one-time fine particles (less than 0.5um), good activity, high alpha switch , size distribution and other characteristics; powder particle morphology is similar to the spherical, no sulfur-containing ,indicators of stability. RBST has established good talent introduction and incentives, with more than150 employees, including 4 senior engineers, 8 engineers, PhD 1, three graduate students, 18 undergraduates; we have advanced testing and inspection equipment, including laser intensity of instrument, Zeta potential instrument, the specific surface area and void instrument, really densitometer, bulk density gauge, X-ray fluorescence spectrometer and X-ray diffraction, atomic absorption spectrometer, which provides a strong guarantee for process control and quality stability of the process . Our products are widely used as raw materials in many areas, such as three color phosphor, electronic materials, thermal insulation, LED sapphire, high pressure sodium, metal halide lamp, and so on.