标准摘要 Cross Reference: AMS2400,AMS6322,ANSI Y14.5M,AS7456,ASME B46.1,ASME Y14.36M,ASTME1444 展开完整摘要 英文名称STUD - STEPPED, 2 DIA ENGAGEMENT .2500-20UNS X .1900-32UNF-3A