A pressure regulation screw bolt can be arranged on the pressure spring, and the pedals can also be installed on the lateral part of the casing.
它的压力弹簧上还可设置压力调节螺栓，外壳侧部还可设脚踏板。
A pressure regulation screw bolt can be arranged on the pressure spring, and the pedals can also be installed on the lateral part of the casing.
它的压力弹簧上还可设置压力调节螺栓，外壳侧部还可设脚踏板。
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