... 80 characteristic features :1.ZD series multi-plate brakes, low relief pressure2.Whole structure high-strength, balancing piston design ... , safe and reliable.3.The material of shaft is low carbon alloy, steel cyaniding treatment, obtain high mechanical performance ... “out of control ” winch ,hydraulic aerial cage ,lifter,low speed vehicles,harvesting equipment and talha eletrica. Resolved the problems of ...