The thickness of the aluminum plate is one of the important properties of the material. Aluminum in the technical standards are provided for the nominal thickness and the actual thickness of the allowable difference between the difference called the thickness deviation. Aluminum and aluminum alloy military aluminum requirements of most of the negative deviation, while the civilian aluminum plate, some require positive and negative deviation.
Another requirement for the thickness of the cold rolled aluminium plate is the uniformity of the thickness. In the same aluminum sheet, if the thickness is not uniform, the thickness difference is called the same plate difference.
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