Aluminum sheet rolls for sale

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The aluminum sheet rolls for sale have a smooth and beautiful appearance. Has a good thermal insulation effect. Aluminum coils are used for pipeline anti-corrosion, battery pipeline thermal insulation, chemical plant pipeline thermal insulation and anti-corrosion. The 5052 Aluminum Coil effectively protects the safe use of the pipeline and is the best choice for insulation protection!
Now, more and more companies will choose aluminum coil for decoration production and so on. The production volume is relatively large, so they generally go directly to the aluminum sheet manufacturers to buy wholesale. But when wholesale, some companies say they have no experience in purchasing. How to distinguish between good and bad when buying aluminum coils? How to deal with quality problems?
Aluminum coil manufacturers teach you to identify the quality of aluminum coils:
1. The surface of the aluminum coil needs to be cleaned. If there are cracks and oxides, it is unqualified.
2. The surface of the aluminum plate is not allowed to have defects such as indentation, damage, rolling indentation, etc., but its depth must not exceed the allowable negative deviation of the plate, and on this basis, a small thickness is guaranteed.
3. The process composite 4x8 aluminum sheet is not allowed to have the part of the packaging layer that falls off and the air bubbles in the packaging layer.
4. The surface of the aluminum coil is not allowed to have defects within the range of thickness difference, otherwise it will be unqualified.