Enterprise technology relying on Research Institute and colleges and sleeve bush universities and colleges and universities and Du Bushing Manufacturers colleges and universities, constantly develop self-lubricating bearings products adapted to different working conditions and various mechanical fields.The product performance has reached the level of foreign products of the same kind. The sales of wholesale self-lubricating bearings all over more than 40 countries and regions at home and abroad, and have been recognized by domestic and foreign users.