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Scratch is the deep, long and narrow grooves in the surface of something. It may result from wear and tear, accidental scratches, and deliberate scratches made by craftsmen, which leaves a visible trace on the object surface.

Scratches have a variety of uses. In general, scratches create aesthetic effects, emphasizing design details and emphasizing the texture of objects. For example, in ancient Egypt and China, artisans used scratches and wire brush lines to pattern surfaces. The symmetrical and harmonious lines enhanced the artistic beauty of gold and silverware. In addition, scratches can also be used in practical purposes, such as producing a one-way surface finish that can block light from entering and prevent frost from forming on glass.

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The common materials that are scratched are metal, wood and ceramic, etc. For example, wooden furniture may have scratches during use, so it needs to be polished or waxed. Some metal surfaces, such as jewelry and kitchenware, may also be scratched to increase the pattern of the object. Even if only light and shallow lines are made, these lines will still damage the original smooth surface, leaving noticeable traces on the products.

In short, scratch is a decoration material that widely used to increase aesthetics and practical purposes due to its reasonable price and easy to make. The scratches can be removed by special polishing agents, and the scratches can also be prevented by appropriate use and reasonable care.