MOBAC,磁滞刹车制动器,磁滞制动器,HB-450M-2,HB-3M-2,HB-750M-2,HB-3500M-2,LB-750M-2,LB-450M-2,HB-10M-2,HB-50M-2,HB-750M-2,LB-1750M-2,