3489| 4
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泛螺紋刀片為什么分A G AG |
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點(diǎn)評(píng)
這個(gè)跟量大量小沒多大關(guān)系,跟螺紋質(zhì)量有關(guān)系。螺紋要求高的,就算單件你也只能用定螺距的刀片。
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