三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺三点内径千分尺内径千分尺千分尺三点内径千分尺