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用45號(hào)鋼加工一個(gè)法蘭,,加工之后可以直接用嗎?要不要表面處理 |
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點(diǎn)評(píng)
說(shuō)一下使用環(huán)境的溫濕度情況,,用在哪里,?惡劣點(diǎn)的就得換304或者316不銹鋼了
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