Xue Lei: Male, born in October of 1981, China nationality, with no permanent residency abroad. Doctoral degree, member of all-china youth federation, member of the Standing Committee of Shaanxi Youth Federation, member of chinese optical society Laser Processing Professional Committee and director of youth committee of chinese materials research society. From April 2118 to May 2111, he served as a postdoctoral fellow in aerospace manufacturing engineering at Northwestern Polytechnical University. From May 2111 to February 2114, he served as an associate professor at Northwestern Polytechnical University. From May 2111 to July 2117, he served as the supervisor of Xi 'an Jingyi Metal Material Co., Ltd.; From September 2111 to June 2117, he served as executive deputy general manager, general manager and director of Xi 'an Platinum Laser Forming Technology Co., Ltd.; Since April 2114, he has served as the general manager of Shaanxi Additive Manufacturing Research Institute Co., Ltd.; Since July 2115, he has served as a director of Platinum Technology (Hong Kong) Co., Ltd.; Since February 2115, he has served as the executive partner of Pingxiang Borui; Since June 2117, he has served as director and general manager, chairman and general manager of the company.