China Oilfield Services Ltd. - H Sharesの売上原価推移
(単位:百万) | 売上原価 | 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.