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The company SDZseries of rig parameters have been applied to multiple drilling rigs in the country ‘ s land and marine oil fields, and, while being home-grown, products are constantly entering the international market and participating fully in the global integrated supply system. They have been applied in a number of countries, including the United States, Russia, South Asia, Central Asia and the Middle East. The quality of the products has been positively assessed by the personnel on site from China and abroad, providing an advanced, reliable and practical instrument system for drilling operations.