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[求助] 模具龟裂有什么方法处理 | 
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  来自安卓客户端 | ||
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 百尺竿头,更进一步。 
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 13622335454涂层后可增加刀具、模具的使用寿命,耐磨性,耐腐蚀性,减小摩擦等。 
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 合适的是最好 
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