行業分類: 石油石化

CNOOC Energy Technology and Services Limited

Hubei Guochuang Hi-Tech Material Co.,Ltd

MAOMING PETRO-CHEMICAL SHIHUA CO.,LTD

HENGYI PETROCHEMICAL CO., LTD

North Huajin Chemical Industries Co.,Ltd

SHENZHEN GUANGJU ENERGY CO., LTD

Zhongman Petroleum and Natural Gas Group Corp., Ltd.

China Oilfield Services Limited

GUANGDONG YUSSEN ENERGY TECHNOLOGY CO.,LTD.

Zhejiang Renzhi Co.,Ltd.

Geo-Jade Petroleum Corporation

PetroChina Company Limited

China Petroleum and Chemical Corporation

Tongkun Group Co., Ltd.

Hengtong Logistic Co., Ltd.

Hunan Heshun Petroleum Co., Ltd.

Ningbo Bohui Chemical Technology Co., Ltd

DAQING HUAKE CO.,LTD

SINO GEOPHYSICAL CO.,LTD

CHINA OIL HBP SCIENCE&TECHNOLOGY CO.,LTD