Microinstrument Optoelectronics (Tianjin) Co., Ltd., upright metallographic microscope WYJ-55XA-2000M, inverted metallographic microscope WYJ-4XC-II. Entered the School of Chemical Engineering at Beihang University, with customers mainly applying it for observing opaque metallographic structures and transparent objects, as well as taking photographs.
Beihang University (abbreviated as Beihang) was established in 1952 by merging the aviation departments of eight institutions: Tsinghua University, Beiyang University, Northwestern Institute of Technology, Xiamen University, Sichuan University, School of Engineering of North China University, Yunnan University, and Southwest Technical College. After two adjustments, it was reorganized and formed as the first higher education institution in aerospace in New China, currently under the Ministry of Industry and Information Technology.
