... Dual-pump hydraulic system, supply system, using high-volume cartridge valve in the pump oil into the oil filter set up ... circuit supporting insurance, ensure safety. Hydraulic pump from the tank, axial piston pump, motor, II Cartridge Valve, oil filter, air filter ... , ensure safety. (1)the oil tank is Q235 welded pieces, the front fitted with pressure gauges, well-controlled relief valve in order ...