Wuxi Beitong Machinery & Equipment Co., Ltd btmachinery(at)hotmail.com! BTB has been the experienced supplier of full range standard and customized bearings and mechanical parts for more than 10 years, now BTB has owned several manufacturing bases which produce Miniature Ball Bearings, Small Size Deep Groove Bearings, Customized Bearings, etc. Ball Bearings Miniature Ball Bearings Flanged Bearings Thrust Bearings Needle Bearings Roller Bearings Plastic Bearings Rod End Bearings Pillow Block Bearings Linear Bearings Special Bearings Bearing Accessories Water Pump Bearings Agricultural Bearings BTB always puts quality first. Our professional technology team can fully understand your engineering requirements and supply exactly what is required. If you have bearing or others want to develop, BTB is always your reliable source. If you have bearing or others hard to find, our domestic sourcing network may help you.