China Oilfield Services Ltd. - H Sharesの当期利益率推移
(単位:百万) | 当期利益率 | 前年比 |
---|
Provision of oilfield services including drilling services, well services, marine support services, and geophysical and surveying services.
Provision of oilfield services including drilling services, well services, marine support services, and geophysical and surveying services.