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鋁合金型材厚度的問(wèn)題 |
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點(diǎn)評(píng)
有厚度一說(shuō),那么4040R2.5這種,有哪幾個(gè)厚度?
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點(diǎn)評(píng)
我標(biāo)的是SW軟件自帶的
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點(diǎn)評(píng)
也可以說(shuō)型材米重
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