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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,,鋼材中國還有生產(chǎn)不好的嗎,?
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