Before the improvement, after the rear axle is assembled, the nuts of the rear axle are removed and discarded directly without recycling, which will waste resources
Before the improvement, after the rear axle is assembled, the rear axle removes the nut and discards it directly without recycling, resulting in waste of resources
Before the improvement, after the assembly of the rear axle is completed, the nuts of the rear axle are directly discarded without recycling, causing a waste of resources<br>