SLS bearing, a professional needle roller bearings and self-lubricating bushing manufacturer in China,is located in Zhejiang province, P . R .China being found since 1991 . We take ideas, " People being most important" and "Keeping progress and developing", to help people to find out the best technical solution to any requirement. We were awarded the ISO9002:94 certification in 1998 and ISO9001: 2000/ TS16949: 2002 Certification in 2004. SLS is our own bran...