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对汽车运输过程中铝金金板材产生的麻斑（有的为小黑点）缺陷进行了全面分析；确定了缺陷的本质及产生的原因；为处理汽车运输板材的质量争议提供了依据，提出了避免和减少该缺陷的措施。
The paper analyzes the defect of the plaque (some black spots) produced during the transportation process of the aluminum alloy, determines the nature of the defects and the causes of the defects, and provides the basis for handling the quality dispute of the automobile transportation plate. Measures to avoid and reduce this defect.