Business scope: Downhole Tools,
Sewage Treatment Equipment,
Technical Consulting,
Technical Services,
Fabrication Of Metal Structures,
Offshore Oil Engineering,
Small Vehicle Repair,
Anti Corrosion Engineering,
Product Sales,
Highway Pavement Engineering,
Building Intelligent Engineering,
Building Engineering,
Design Of Medium Pressure Vessels,
Spare Parts,
Boiler,
Mechanical And Electrical Equipment Installation,
Power Facilities,
Second Class Motor Vehicle Maintenance,
Repair Test,
Electronic Engineering,
Chemical And Petroleum Engineering Construction
...