左.牙攻丝直25钴丝用.牙m14m16m18m20m22x1x11含反机*槽5x2x反

规m12x1牙/公制5m18x1../5x1螺纹量规.规环外螺纹/规5m14x11m16x1

规.螺纹牙.5m18x1m12x15x1外螺纹/量规规5m14x11m16x1环./公制规/

/m12x1公制规螺纹.量规5m14x11m16x1牙.规//环5m18x1.5x1规外螺纹