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就目前国内航标的 90°、1 2 0°沉头螺栓 (钉 )的头部高度用锥面式衬套配合卡板测量方法的特点与国外同类产品用台阶式衬套测量方法的特点进行理论、实际计算对比分析 ,得出较理想的测量方法
The present domestic aids to the 90 °, 120 ° countersunk head bolt (nail) head height with the tapered bushing with pallets measured the characteristics of the method with similar foreign products using the theory of step bushing measurement method theory , The actual calculation of comparative analysis, come to an ideal measurement method