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通孔螺紋和盲孔螺紋刀具怎么選擇? |
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點(diǎn)評(píng)
通孔攻絲的話會(huì)出現(xiàn)爛牙的情況嗎?如果沒有,,那就有可能是盲孔攻絲的鐵削沒有排干凈,,絲錐往外退的時(shí)候出現(xiàn)的問題
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