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Tongao testing is the most competitive and largest non-destructive testing service provider in China's oil and gas industry. It is the first independent third-party testing company to enter the international oil and gas market and have international competitiveness. 


technical feature

·  Integrated solutions for oilfield nondestructive inspection.

·  Full life cycle management plans for drilling and production facilities.

·  Flexible modes providing personalized service according to operating environment.

·  Independent R&D capabilities of inspection equipment and management information systems with more than 20 patents.


product catalog

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key projects and customers

·  Third party inspection and verification project of drilling tools in Tarim Oilfield

·  General contracting project of pipe tool company of Yumen general contracting company of western drilling company

·  Iraq oilfield inspection and maintenance API workshop EPCC project


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