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Douson has obtained the major international certification of the petroleum machinery   

industry. It is an important supplier of CNPC, SINOPEC and CNOOC,and has established strategic 

cooperative relations with many famous international enterprise. Sales outlets and dedicated follow-up 

services which covered major domestic oil fields, provide customers with complete technical support and 

timely after-sales service.

Douson overseas business covers the United States, Canada, Argentina, Australia, Saudi Arabia, 

Kazakhstan and other major oil and gas production areas in the world. 


Douson commits to meet customers’  requirements, adopts mature, advanced, reasonable production 

procedure and technology, strictly implements API and corresponding technical standards, strengthens 

quality management, pursues scientific and technological innovation to improve products quality.


※Douson products have advanced design, reasonable structure, qualified materials

※Douson considerate and integrate service can guarantee to provide customer with full range of technical

   guidance and consulting.

※Douson strictly abides by the ISO9001, API quality system and strictly controls design, material 

   sourcing,fabrication, test, package, delivery and after-sale service  to ensure products “zero defect”.

※Strictly according to customers requirements, Douson well organized production, Strictly control quality 

   to ensure products performances to meet customers requirements.

※Douson will respond to equipment failure within 12 hours and promise to solve problems at working site

   within 24 hours on the permitted conditions to ensure equipments can restore normal operation within

   shortest time.

※Douson will have a regular understanding of the use of products, solve feedback information timely 

   and provide customer with long term technical service.