Mushashi Oil Seal Mfg Co Ltd, established in 1948, has the widest range of oils seals and o-rings, producing for many years, apart from belts. The products are made to OEM specifications. It has always maintained strict quality assurance and its both domestic and overseas factories have obtained ISO 9001 or ISO/TS 16949, which is considered to be the most stringent international standard for quality management systems.