螺钉调节快速夹紧卡钳
screw adjusted quick grip pliers
内板锁紧螺钉螺纹
internal lock plate screw thread
曲柄连杆夹紧螺丝
crank connecting rod clamp screw
抬牙曲柄夹紧螺丝
feed lifting rock shaft crank clamping screw
小齿轮轴承夹紧螺栓
pinion bearing retainer bolt
支重轮轴夹紧螺栓
roller shaft clamping bolt