Handan Aorong Fastener Manufacturing Co., Ltd is a professional manufacturer of drilling screw and tapping screw, variety of professional production line of drill tail screw. All used equipment are imported from Germany, Japan and Taiwan, The employed the top domestic technologist, in hexagon-shaping、clipping、thread-rolling、carburize、zinc plated、washer machine、package and other processes, every link strives for perfection and the best.