Xuzhou Tianlong Slewing Bearings & Hydraulic Machinery Co.,Ltd. It’s a Chinese professional company for research and development & manufacture slewing bearings and hydraulic system.We established in 1991 with manufacture volume 350 million yuan per year, cover an area of 60,000 square meters, with more than 396 skilled workers, 78 senior engineers. The company hay 2 Invention Patents, 26 Practical & Novel Patents, still have “Slewing Bearing R&D Centre ”, “Enterprise-School Research Institute ”.