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Lock surface treatment

Surface treatment refers to the use of metal electrodeposition (commonly known as electroplating), coating (spray), chemical oxidation (coloring) or other processing methods in the surface of the parts covered or form a protective film. The film mainly from the anti-corrosion effect, but also increase the aesthetic and product durability, is a direct measure of product quality is an important factor. Common methods of measuring surface treatment are: cover with thickness measurement, combined force inspection, salt spray and wet test, visual inspection and so on. Coating is carried out by coating adhesion, hardness, moisture test and appearance inspection and other methods.

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