5073| 12
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42crmo哪些牌子好一點(diǎn) |
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點(diǎn)評(píng)
好就是不要錢,現(xiàn)在還有好不好,小廠沒了,都是大廠,按國(guó)標(biāo)生產(chǎn)的材料,普通的應(yīng)用根本分不出好壞,
評(píng)分
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點(diǎn)評(píng)
除了少數(shù)特種鋼,鋼材中國(guó)還有生產(chǎn)不好的嗎?
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