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。
The nail type signet has buffering function by making use of the inner spring of a signet handle and the shim of a signet neck to adapt the stamped objects of different states.
利用戳柄内弹簧和戳颈垫片，使之在操作时具有缓冲功能，以适应不同状态的被盖物。
The nail type signet has buffering function by making use of the inner spring of a signet handle and the shim of a signet neck to adapt the stamped objects of different states.
利用戳柄内弹簧和戳颈垫片，使之在操作时具有缓冲功能，以适应不同状态的被盖物。
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