A.主溢流閥工作壓力34.3Mpa,增壓壓力39.2Mpa,動(dòng)臂,斗桿,鏟斗油口溢流閥壓力39.2Mpa,備用30MPa
B.主溢流閥工作壓力34.3Mpa,增壓壓力39.2Mpa,動(dòng)臂,斗桿,鏟斗油口溢流閥壓力37.3.Mpa,備用30MPa
C.主溢流閥工作壓力34.3Mpa,增壓壓力37.3Mpa,動(dòng)臂,斗桿,鏟斗油口溢流閥壓力39.2Mpa,備用30MP
D.主溢流閥工作壓力34.3Mpa,增壓壓力37.3Mpa,動(dòng)臂,斗桿,鏟斗油口溢流閥壓力37.3Mpa,備用30MPa