China Oilfield Services Ltd. - H Sharesの営業キャッシュフローマージン推移
(単位:百万) | 営業キャッシュフローマージン | 前年比 |
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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.