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铝板产品广泛用于汽车和建筑等行业。提高铝产品的质量是企业生存的基础。铝材料在空气中极为不稳定，并且很容易生成难以用肉眼识别的氧化膜。由于铝制零件的不同加工方法，例如铸造，从挤压金属中直接切割，机械精度加工或在不同过程后进行热处理或焊接，工件的表面将呈现不同的状态和程度的污垢或标记。因此，在预处理过程中，必须根据工件表面的实际情况选择预处理方法。...
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.