Changzhou Jade Bearing Co., Ltd is established in 2003.We are specialized in producing standard and non-standard cylindrical roller bearings,Website:http://www.jadebearings.com, combined bearings for logistics, yoke type track roller, and needle roller bearings, etc..SL series Bearings are widely used for port equipment, engineering machine, planetary reducer, mining machine and other industries.http://www.jadebearings.com