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[研讨] 求解硝化棉液加入PU哑光清的消光原理? |
20普通分
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点评
黄总就是黄总,解释得相当到位哈!上海涂料展喝2杯哈!
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知识改变命运,态度决定一切
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http://blog.coatingol.com/user
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