Business scope: Mud,
Logging,
Hardware,
Office Equipment Repair,
Large Equipment Installation,
Completion,
Railway Freight Forwarding Agency,
Directional Well,
Petrochemical Product Additives,
Technology Intermediary Service,
Drilling Accessories,
Petroleum Machinery And Equipment Repair,
Container Unpacking Service,
Cleaning Services,
Business Consulting,
Maritime,
Device,
Warehousing Services,
Technical Consulting And Communication And Promotion Services,
Special Provisions Shall Be Handled In Accordance With The Special Provisions,
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