Because the mechanism replaces a traditional screw rod and screw nut mechanism, the rotary furniture has simple structure, stable rotation and low cost.
2
因此螺杆、螺母的设计依据是耐磨性。
So screw, nut design is based on wear resistance.
3
主锯片升降采用螺杆，螺母结构，平稳可靠。
With the main blade lifting screw, nut structure, stable and reliable.
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