Tieli bearing company has 85 domestic advanced CNC machine tools for bearing grinding and processing, with three workshops of grinder, heat treatment and assembly, and equipped with advanced computer-controlled roundness instrument, contour instrument and other testing equipment. The company mainly produces deep groove and angular contact ball bearings with inner diameter of D15 ~ 140mm, double row self-aligning ball bearings, conical bearings, centripetal short cylindrical roller bearings, precision bearings, low-noise bearings, etc. The products are mainly used in machinery, machine tools, motors, chemical industry, mining, metallurgy, automobile and agricultural machinery. The production process and technical conditions all comply with the HRB internal control standard of Harbin axis, and the product quality is excellent and reliable