制动钳体锥体密封沟槽的尺寸精度影响着油缸密封圈的使用寿命，油缸活塞的复位精度及整个制动器的制动灵敏程度等；
The dimension accuracy of the sealing slot is closely related to the life time, reset accuracy of the oil cylinder piston and braking sensitivity.
前轮是双活塞合金制动钳，而后轮是单活塞制动钳，可对大尺寸车轮进行制动。
Twin piston alloy callipers at the front and single piston callipers at the rear bring the large-diameter wheels to rest.
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