Gelonghui November 13th 丨Some investors asked Guangku Technology (300620.SZ) on the investor interactive platform, “Does the company cooperate with major domestic and foreign communication equipment suppliers, such as Huawei, ZTE, etc.?” The company replied that the company's customers include well-known foreign laser manufacturers such as TrumpFGroup, Lasers, Spectra-Physics, etc., leading domestic laser manufacturers JPT, Chuangxin Laser, Guanghui Laser, Dazu Laser, etc., well-known domestic and foreign optical communication companies Ciena, Finisar, Lumentum, Fujikura, Zhongji Xuchuang, etc., and famous domestic and foreign research institutions such as the Shanghai Institute of Optoelectronics of the Chinese Academy of Sciences, the Institute of Semiconductors of the Chinese Academy of Sciences, the Chinese Academy of Sciences, the Chinese Academy of Sciences, the Chinese Society of Optical Engineering, Stanford University, the University of Tokyo, the Chinese Academy of Sciences, Tsinghua University, etc. 。