The appearance decoration of civil electronic products is a very important technical means to expand sales and enhance market competitiveness. Most of the processing technology of aluminum decorative parts in CHINA adopts the method of oxidation registration. Although this process has its advantages, it is difficult to carry out mass production due to the problems of long production cycle, difficulty in overprinting multiple colors, high scrap rate, and low production efficiency. After two years of production practice in our factory, it has been proved that using mechanical processing, sanding the aluminum plate and printing patterns and characters by offset printing is an effective process for the production of aluminum decorative parts. Aluminum decorative parts processed by this process method have the following characteristics: