GRH imapanga ndikupanga unit mphamvu, orbit motor, hydraulic gear pumps / gear motors, mono-block valves, sectional stack valves, proportional valves and flow dividers .Zigawozi zimagwiritsidwa ntchito makamaka pamakina a mafakitale, kusamalira zinthu, makina omanga, ulimi ndi mafakitale. minda.