2900| 13
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需要這么一個零件,該用什么材料呢? |
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點評
太高端,包括性能、價格
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點評
隔熱
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點評
不太了解,螺紋強(qiáng)度夠嗎,經(jīng)濟(jì)性如何
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點評
螺紋怎么處理,需外購定制,周期、價格受限
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