We are a specialized state-own enterprise founded by Xi' an Investigation & Design Institute of Shaanxi Non-ferrous Metal Group Corporation. With leading technics in China, advanced equipments, ....
Shanghai Yufeng Electronics Technology Co., Ltd. .... including Shandong, Sichuan, Guangdong, Henan, Liaoning, Shaanxi, Hubei, Zhejiang, Tianjin and Beijing.....