
Beijing Hongjing Technology Co., Ltd.Beijing Shi, China

Quaker State Corp.

Da Kong Enterprise Co. Ltd.

Toshiba Ceramics Co. Ltd.

Jilin Yongda Electric Switch Co. Ltd.

Shanghai Dongfeng Hardware Co. Ltd.

Heilongjiang Electric Power Research Institute

Wenzhou Tailewei Engineering Design Co., Ltd.Zhejiang Sheng, China

Dongguan Sogou Computer System Co., Ltd.

Yantai Research Institute of China Agricultural University

Jiashan Ruode Transmission Equipment Co., Ltd.Zhejiang Sheng, China

Samsung Semiconductor (China) R&D Co., Ltd.