由车轴拆下螺帽,U型螺栓和弹簧支架。
精密弹簧(压簧、拉簧、扭簧、异形弹簧及电池弹簧等)、USB不锈钢伸缩发条、铜铁铝铆(窝)钉、爪钉/管珠、玩具车轴。
Precision spring(compression/tension/torsion/special-shape/battery spring), USB stainless clockwork spring, copper, iron and aluminum rivet, nail claw/claw pearl, and toy axle.
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