标准摘要 Cross Reference: AMS2759/3,AMS4928,AMS5659,ANSI/ASME/B46.1,ANSI/Y14.36,ANSI/Y14.5M,AS478,AS478J,MA4510,MAP4296 展开完整摘要 英文名称FITTING, CROSS, INTEGRAL WELD RING, 21,000 KPA, METRIC