... and error-proof operating system.Engine,hydraulic pump, hydraulic motor, hydraulic valve, reductor,chassis part,electronic control ... original GERMANY REXROTH(the machines all hydraulic pump,hydraulic motor,hydraulic valve). 3Chassis partsfrom ITALY BERCO S ... REXROTH (BEIJING)( equipped with imported REXROTH quantitative hydraulic motor). 7Slewing reductorfrom GERMANY REXROTH (BEIJING)( equipped ...