So far, our company has successfully developed OCTG products with non-API standard premium connection, Such as DL-V series.DL-T series.DL-H series.DL- J series, which has the same performance as Vam series.Tenaris-Hydrill series.Hunting series and JFE series. Further more all of them have got the Chinese national patent .The application scope for premium connection includes 1.66-20 suitable for the steel grade N80 ,L80,C90,T95,P110,Q125.The above mentioned technical achievements have been applied in mass production with good comments from customers.

Since its Foundation, Landdrill Holding Limited (Hereinafter referred as Landdrill) has been devoting itself to provide comprehensive and high-quality equipments and services for global petroleum and gas industry , with its business covering commodity trading, technique research, manufacturing and oilfield services. The company is also running several subsidiaries including: Dynoland International Trading Co. Ltd, Shanghai Kangxin Oil Pipe Manufacturing Co. Ltd, Dongying Landdrill Petrochemical Co. Ltd, Dongying Landdrill Machinery Manufacturing Co. Ltd, Tianjin Shine Oilfield Technology Service Co. Ltd. Landdrill mainly focus on OCTG with premium connections, Large Diamaeter Conductors, Mini and small scale refining equipments as well as petrochemical products, and meanwhile engaged in oilfield services like casing repairing, drilling service, and recovery of used oil and so on.The Company already extended its international business to many countries or regions in Central Asia, North Africa, Latin America, the Middle East, Asia Pacific, etc, and also set up local branches in Hong Kong, Georgia, Colombia, Nigeria and Mexico with the business development.

Company Name	Dynoland International Trading Co.,LTD
Website	http://www.landdrillholding.com
Operational Address	Rm1010A, LC international center, No. 1 Cuijingbeili, Tongzhou, Beijing, 101121, China,

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