标准摘要 Cross Reference: AMS2700,AMS4117,AMS4921,AMS5656,ARP4296,AS4459,AS5902,ASMEB46.1,ASMEY14.36M,ASMEY14.5M,ASTME1417,MIL-DTL-5541 展开完整摘要 英文名称FITTING, UNION, EXTERNAL SWAGE, HYDRAULIC