der adopts pendulum structure①Shorter stroke, lower mechanical wear②High precision, nail cutters work without touch, low tool wear.③One set of cutters’ cutting times up to 10 million timesFeeding and rewinding structure ①High -precision feeding device. The error of each nail length is controlled within 0.3mm②Unique wire feeding and retreating combination, each nail through the wire feeding, cutting, wire retreating, three mechanical action, the nail will be completely separated from th