As one of the most widely applications, ?GRH has supplied huge numbers of hydraulic pumps and valves to the tractors . GRH has been working with CNH, Deutz Fahr for more than 10 years, GRH is also the only Chinese global supplier of John Deere for the hydraulic products. With its excellent and unique performance, GRH constant flow gear pump are widely used here in China, we also have the hydraulic control valves tailored for tractors, with its excellent performance, GRH tractor valves are getting more and more popular here in Chinese tractor market.