Jiashan Zhengtong Composite Self-Lubrication Bearing Factory is a professional factory specializing in manufacture and sales of lubricating bearings, such us ZTB10 self-lubricating bearings, ZTB20 boundary lubricating bushings, ZTB30 bimetal bushings, ZTB50 solid lubricant embedded bearings, ZTB30 bimetal bushings, ZTB50 solid lubricant embedded bearings, ZTB40 bronze meshes and ZTB90 bronze bearings. Our products are wildly used in light-weight mechanical machines, tooling machines, engineering machines, food machines, agriculture machines, air-plane machines and textile machines, and have...