With state-of-the-art product machining centers and complete quality management system, SOFE has an annual output capacity of 40,000 roller bits, 5,000 diamond bits, 2000 PDM drills, 250 sets of drilling/workover rigs, 400 sets of cementing/fracturing equipment, 200,000 high pressure manifolds, 600,000 tons of steel pipes, and 50 sets of heavy-duty compressors.  Sticking to the principle of quality and reputation orientation, SOFE has established first-class testing facilities, introduced third-party inspection agencies, and fully adopted international standards, to promote this traditional manufacturing industry using the advanced technologies and strengthen the quality control with complete inspecting and testing system. We have been granted API, GOST and CE certifications, and our products have been certified by world recognized agencies such as CNAS, DNV, ABS, CCS, MDP.