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.
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。
A through hole which is arranged on the rivet in a shaft direction can be used for threading a nail when the membrane sandwich riveted board for decoration is installed.
铆钉可将夹层板的层间夹固贴合，铆钉轴向所设通孔可供安装本装饰板时穿钉。
Machine this for nail and rivet various kinds of specification four ideal equipment that buckle jointly, replace and nail strenuous work that rivet by hand;
本机为钉铆各种规格四合扣的理想设备，取代手工钉铆的繁重劳动；
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