Business scope: Test,
Instrumentation,
Electronic Product,
Production,
Mechanical And Electrical Engineering,
Downhole Tools,
Construction And Technical Services,
Inspection Of Instrumentation,
Automation Engineering,
Repair,
R D Of Hardware And Auxiliary Equipment,
Petroleum Machinery,
Petroleum Engineering,
Research And Development,
Valve,
Petroleum Special Equipment,
R D Of Wujinjiaodian,
Network Communication Equipment,
Testing Service,
Sales And Technical Service,
...