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Seven oil fields integrated maintenance
Beijing maintenance
Qinghai oil field Maintenance
Dagang oil field maintenance center
Daqing oil field maintenance center
Liaohe oil field maintenance center
Jidong oil field maintenance center
Changqing oil field maintenance center
Eight office
Tuha office
Yumen office
Tang hai office
Daqing office
wheel stand office
Tanggu office
Wushen banner office
Xi 'an office
30 oil field service vehicles 24 hours well service experience to ensure a strong production awareness