Hejian Deyong Drilling accessories Manufacturing Factory is a state owned public company with the majority shares held by SINOPEC. The company was initially set up in 1973,and now has become a leading oil and gas drill bit manufacture in china .
Market oriented, the Factory pushes forward the technical innovation and product improvement and has formed the world advanced technical system with its own intellectual properties. our factory has had technical cooperation with over 30 universities and...
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