GB/T15826.7-1995附录A台阶和凹档的锻出亲件(参考件)A1锻件上台阶或凹档的锻出条件应符合图A1及表A1的规定。图A1表A1mm零件相邻台阶的直径D台阶高度零件总长度大04063100160200250315L4063100160200250315400大于至大于至锻出台阶或凹档最小长度的计算基数！03151001201401601803156301401601802102406301000180210240270300810001600240270300330360160025003303604004402500400044048052040006000560600031570809010011012014031563090100110120140160180630100011012014016018021024014100016001401601802102402703001600250021024027030033036025004000300330360400440400060004004404805203
