TAP, THREAD CUTTING (REGULAR, FRACTIONAL INCH SIZES) (SUPERSEDING A-A-625) (S/S BY BS-1831-1985(R99))
螺纹切削丝锥（常规 分数英寸尺寸）（代替A-A-625）（S/S由BS-1831-1985（R99）规定）

1987-12-07

TAP, THREAD CUTTING (REGULAR, FRACTIONAL INCH SIZES) (SUPERSEDING A-A-625) (S/S BY BS-1831-1985(R99))
螺纹切削丝锥（常规 分数英寸尺寸）（代替A-A-625）（S/S由BS-1831-1985（R99）规定）

1987-12-07

TAP, THREAD CUTTING (GROUND, HIGH SPEED STEEL, REGULAR, MACHINE SCREW TAPS) (SUPERSEDING A-A-624) (S/S BY BS-1831-1985(R99))
螺纹切削丝锥（磨削高速钢普通机用丝锥）（代替A-A-624）（BS-1831-1985（R99）标准S/S）

1987-12-07

TAP, THREAD CUTTING (GROUND, HIGH SPEED STEEL, REGULAR, MACHINE SCREW TAPS) (SUPERSEDING A-A-624) (S/S BY BS-1831-1985(R99))
螺纹切削丝锥（磨削高速钢普通机用丝锥）（代替A-A-624）（BS-1831-1985（R99）标准S/S）

1987-12-07