Hangzhou Qianjiang Chain Industries Co., Ltd founded in 1988, is a professional manufacturer of industry transmission chains,motorcycle chains,conveyor chains,dust and water proof sealed chains and some special chains,is also the earliest manufacturer that developed and produced O-ring and X-ring sealed chains. In 2001,Qianjiang's sealed chains were awared "outstanding new products of national chain industry " and "special award".

Qianjiang has three famous brands: YF , QJ and HQL.More than 60% of his products exported to oversea markets.The products completely conform to the ISO, ANSI, BS, DIN, JIS international standards and the national industry standards. Qianjiang has set up a complete set of quality management system which is provided with advanced inspection and test equipment.Since 2001,Qianjiang has been successfully certified by ISO9001 Quality Management System,SGS inspection and BV inspection.