标准摘要 Cross Reference: AS478,AS5270,AS870,AS8879,ASME B46.1,ASME Y14.36M,ASME Y14.5M 展开完整摘要 英文名称BOLT, MACHINE, DOUBLE HEXAGON, DRILLED, EXTENDED WASHER HEAD, PD SHANK, NICKEL ALLOY, UNS N07718, 220 KSI MIN