brake adjustment bolt 制动器调整螺栓
drag adjustment bolt 牵引杆调整螺栓
speeder spring adjustment bolt 增速器弹簧调整螺栓
side thrust adjustment bolt 侧向止推调整螺栓
tension adjustment bolt 张力调节螺栓
overspeed setting adjustment bolt 超速设定调节螺栓
GAP ADJUSTMENT BOLT 调整螺栓
spring adjustment bolt 弹簧调整螺栓
float adjustment bolt 浮线螺栓闸刀
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