Since it's 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.T