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[求助] 羟基丙烯酸聚氨酯面漆柔韧性为什么这么差? | 
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 想问题,一定要勤思索,千万不能人云亦云,随波逐流  | 
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 邮箱danielno1@126.com, 
欢迎就技术问题交流。  | 
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 中国上海. 
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 因为痴迷,所以专注! 
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 借年轻资本多学习··· 
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