标准摘要 Cross Reference: AMS2759/3,AMS4928,AMS5659,ARP4296,AS1576,AS478,AS478J,ASMEB46.1,ASMEY14.36M,ASMEY14.5M 展开完整摘要 英文名称FITTING, SLEEVE, FLARELESS, NONREDUCER AND REDUCER, SHORT ACORN TO WELD TUBE END