特种铸造
消失模铸造涂料是怎么配出来的?
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2020-08-31 15:46
消失模铸造涂料是怎么配出来的?
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2020-08-31 15:46
骨料 膨润土 乳白胶 CMC BY 水
100% 2.7% 3.5% 2.5% 2.5% 适量
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