Leshan's high purity materials team has been focusing on the R & D, production and marketing of new List of semiconductor materials such as high purity pure substances and high purity compounds.Based on the industrial chain of“High-purity selenium-selenium compound”, we continuously develop and introduce the frontier materials needed by the market. Professional and technical advantages for the company's technical innovation, product development and industrial development, laid a solid foundation. Up to now, more than 300 kinds of high purity materials have been developed, which are in the leading position in the high purity field in China.