SXJZ.SXJZ Company was established in Jinzhong, Shanxi Province in June 2006. With a registered capital of 31.8 million yuan, it is a petroleum drilling tool manufacturer with strong technical capabilities. Fifty percent of the company's employees hold bachelor's degrees or higher, and it employs numerous technical specialists in mechanical design and petroleum drilling engineering. SXJZ has obtained stringent product certifications including API Spec 7-1 and 5DP, as well as ISO 9001 quality management system certification. Equipped with advanced specialized production facilities and comprehensive testing methods, the company implements full-process quality control from raw material analysis to ultrasonic and magnetic particle testing. Its primary products include drill collars, non-magnetic drill collars, weighted drill pipes, square drill pipes, friction welded drill pipes, and various auxiliary tools. These products are widely applied in petroleum, coal mining, and other industries.