分类: 页岩气

China Petroleum and Chemical Corporation

Wintime Energy Group Co., Ltd.

Henan Huanghe Whirlwind Co., Ltd.

Guanghui Energy Co., Ltd.

Haohua Chemical Science and Technology Corp., Ltd.

Liaoning Cheng Da Co., Ltd.

Datang Huayin Electric Power Co., Ltd.

Shandong Xinchao Energy Corporation Limited

Sinopec Oilfield Service Corporation

CNOOC Limited

Lanpec Technologies Limited

PetroChina Company Limited

Neway Valve (Suzhou) Co., Ltd.

Bomesc Offshore Engineering Company Limited

Jiangsu Hongtian Technology Co., Ltd.

Nanjing Develop Advanced Manufacturing Co., Ltd.