Changzhi Trieternal Science & Trading Corp., Ltd., with five factories, having been engaged in exporting bearings for more than 10 years, is a professional supplier of a wide and diverse range of bearings. We produce rolamento--ball bearings and roller bearings, such as, deep groove ball bearings, thrust bearings, angular contact ball bearings, self-aligning ball bearings, tapered roller bearings (both inch system and metric system), spherical roller bearings, cylindrical roller bearings, ...