Suzhou Liyuan Hydraulic (苏州力源液压有限公司, formerly known as Liyuan Hydraulic Suzhou, 力源液压(苏州)有限公司) is a developer and manufacturer of hydraulic components and systems. It offers hydraulic pumps and motors for heavy equipment and construction machinery applications. Suzhou Liyuan Hydraulic is a joint venture between Allied Machinery and the Avic Group.