13450| 19
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增加裝飾螺紋線規(guī)格及后續(xù)問題 |
點評
第二天重啟電腦后(猜測電腦光注銷不行),德標可以有M50X1.5了,國標依然不可行。
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點評
您猜測是按中徑做為選擇標準嗎?
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