FENGTOU company can perfect interchanged with rexroth/komatsu/hitachi/caterpillar/kayaba/liebherr/messori/toshiba/kawasaki/jeil/teijinseike/uchida/danfoss/linde/eaton/yuken/hawa/parker/nachi/dakin/tokiwa/sam/oilgear etc for all kinds of pump.travel motors&swing motors.