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Question:

How to identify the quality of aluminum-plastic plate?

How to identify the quality of aluminum-plastic plate?

Answer:

And then cut a piece of the sample, boiled in boiling water for ten minutes, and then come out to put the refrigerator in the frozen one or two hours, if there is time to repeat more than a few times, and then hand or tools to expose the two sides of the aluminum, Opened the description of the quality is relatively poor, if it is not easy to open that excellent quality, which mainly depends on the temperature of hot and cold on the impact of aluminum panels.
In the whole piece of aluminum-plastic plate on a cut, and then flat, in the board around a circle of sand, and then pour the dilute sulfuric acid in the middle of the sand, soak overnight, mainly to see the corrosion resistance of aluminum-plastic plate. Note (especially do not use the seller to provide the sample, because the sample has generally played a special treatment of wax. If you use for outdoor decoration, it should do this experiment)

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