Chairman Address
Company Information
Company Profile
Company Culture
Company Honor
Company History
Scientific Innovation
General Intorduction
Technical Cooperation
Patent Technology
Home > About us > >>Scientific Innovation >>Technical Cooperation


Swiss
Keller Company

American
Actaris Liquid Measurement

American
Harliburton Company
     

American
Computalog Co.

American
Petron Industries Co.

American
Martin Decker Company
     

China
Shengli Oilfield

American
Innovative Electronics

American
PANEX Company