Luoyang haizhi machinery co.,ltd is specialized in designing, developing producing and selling the large-size, extra-large-size, slewing , non-standard and other special bearings. with advanced science and technology, the company develops and manufactures various kinds of bearing products with inner diameter of over 200 mm to 6300mm according to the national standard, such as large-size and extra-large-size slewing bearings, deep-groove ball bearings, angular contact ball bearings, single, double and four-row cylindrical roller bearings, spherical roller bearings, spherical ball bearings, single, double and four-row tapered roller bearings, thrust ball bearings, thrust roller bearings, and split bearings our products are widely used in the fields all over the country, such as port, machine tools, mining ,metallurgy, power industry, medical, heavy machinery, coal machinery, cement machinery, petroleum exploration as well as national defense industry.