Grinm Advanced Materials Co., Ltd. ("GRIAM"), originally known as Grinm Semiconductor Materials Co., Ltd., and solely sponsored by General Research Institute for Nonferrous Metals ("GRINM") through fund raising, was established in March 1999 and listed on Shanghai Stock Exchange with a registered capital of 838.78 million RMB. The registered address is No. 43 of Bei San Huan Zhong Lu, Haidian District, Beijing.
Infrared Optics
Guojing's optics workshop has various polishing and coating machine, including classic polishing, CNC polishing, dual-face polishing, ring polishing, vacuum evaporation coating, PECVD and magnetron sputtering machine . Guojing can provide optical elements including Germanium, CVD ZnS, CVD ZnSe, Silicon,etc . , with the shape of planar, sphere lenses and dome, with the coating of broadband AR and DLC hard coating.

Website：

www.guojing-tech.com

Service Hotline:

0316-2509035

Let new materials benefit the whole world