2984| 13
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需要這么一個(gè)零件,,該用什么材料呢,? |
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點(diǎn)評(píng)
太高端,包括性能,、價(jià)格
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點(diǎn)評(píng)
隔熱
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點(diǎn)評(píng)
隔熱
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點(diǎn)評(píng)
不太了解,,螺紋強(qiáng)度夠嗎,經(jīng)濟(jì)性如何
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點(diǎn)評(píng)
螺紋怎么處理,,需外購定制,,周期,、價(jià)格受限
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