Gansu Hailin Zhongke Science and Technology Co., Ltd, is reformed in 2001 from Tianshui Hailin Bearing Factory that established in 1996. It is  a large scaled backbone enterprise in Chinese Bearing Industry, one of  500 top enterprises in Chinese Machinery Industry,the first-batch export enterprise of mechanical and electrical products, the largest professional manufacturer of tapered roller bearings in China and export leading enterprise in Gansu province. Now HL has more than 1400 staff, annual production and sales volume relatively reach 100 million US dollars. "HL" brand bearings are exported to over 30 countries and regions in the world, with an annual export value in excess of 50 million US dollars. For more than 50 years, HL has been adhering to the service tenet of "customer satisfaction", the cooperation mode of "strategic union" and the cooperation goal of "mutual benefit". It is committed to becoming the first brand of tapered roller bearings in China.