Hydraulic valve manufacturer, focused on the Development and Manufacturing of Hydraulic Cartridge Valves since 2009, in Ningbo China Since its establishment 13 years ago, 6 first-line international brand importers have placed orders with AAK for 5 consecutive years, with a re-peat order rate of 62%. Exported to more than 20 countries, AAK Hydraulic Valves used on "AIRCRAFT" have been supplied to Russian customers. 68%+ of the high precision hydraulic valves exported from Ningbo Port come from AAK hydraulic valves.