
Institute of Mineral Resources, Chinese Academy of Geological

SICHUAN PROVINCIAL COMMUNICATIONS DEPARTMENT HIGHWAY PLANNING SURVEY DESIGN RESEARCH INSTITUTE

Hangzhou Lianfa Pipe Industry Technology Co. Ltd.

Chengdu Zhongbang Intelligent Technology Co., Ltd.Sichuan Sheng, China

Beijing Jingpin Special Equipment Co., Ltd.Beijing Shi, China

LUC Technologies Ltd.

Sany Heavy Integrated Coal Mining Equipment Co. Ltd.Liaoning Sheng, China

Ningbo Yongwei Group Co. Ltd.

Jiangsu Luohua New Material Co., Ltd.Jiangsu Sheng, China

Dawliffe Hall Educational Foundation

CNPC Chuanqing Drilling Engineering Co., Ltd. Downhole Operation CompanySichuan Sheng, China

Luoyang Pengfei Wear Resistant Materials Co. Ltd.Henan Sheng, China