What about Nanjing Guo Rui Microwave Devices Co., Ltd.?

Nanjing Guo Rui Microwave Devices Co., Ltd. is a state-owned enterprise, controlled by the 14th Research Institute of China Electronics Technology Group (a very powerful research institute).

It mainly produces electronic technology/semiconductor/integrated circuit communication/telecommunication/network equipment, which is divided into three business segments: microwave electronic products, traffic electronic systems and information system integration.