Business scope: Sales Of Drilling Fluids,
Technical Consulting,
Technical Services,
Chemical Products,
Building Materials,
Instrumentation,
Import And Export,
Technology Import And Export,
Technology Development,
Cementing Material,
Carry Out Business Activities,
Oil Recovery Auxiliary,
General Equipment,
Technical Extension Services,
Completion Fluid,
Hardware,
Engineering Consulting,
Business scope: Downhole Tools,
Carry Out Business Activities,
Mining Equipment,
Sales Of Machinery And Equipment,
Water Treatment Auxiliary,
Contract Energy Management,
Machinery And Equipment Leasing,
Oil Recovery Auxiliary,
Oil Drilling Equipment,
Agent Import And Export,
Drilling Aids,
Technical Services,
Technology Transfer,
Technical Consulting,
Import And Export,
Technology Import And Export,
Electronic Product,
Development Of Oil Drilling Equipment,
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