剪刀及拔钉鎚即属于此类槓杆。
拉伸强度、 弯曲强度、 冲击强度、 压缩强度、拔钉强度等力学性能能够满足所生产的产品性能的需要。
The pull strength, bend strength, strike strength, compaction strength, pulling-nail strength could satisfy the mechanical properties of the products making.
本实用新型公开了一种拔钉器，目的是提供一种在拔钉的同时又可清除残钉，结构简单，方便携带和使用的拔钉书钉器。
The utility model discloses a nail puller, which provides a nail puller of simple structure, convenient taken-with and utilization which can pull nail and clean the remained nail.
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