8261| 32
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外圓這種花紋是怎么加工的 |
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點(diǎn)評(píng)
好吧
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點(diǎn)評(píng)
應(yīng)該是模具鋼的,鑄造不可以
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點(diǎn)評(píng)
可以 滾字
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點(diǎn)評(píng)
我也不知道具體用途,只是看到這東西有點(diǎn)悶
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點(diǎn)評(píng)
帶字的
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點(diǎn)評(píng)
模具鋼
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