Dongguan City, Daling Shan Chang Sheng processing hardware store is HDMI metal enclosure. Luggage accessories, zinc alloy and other professional production and processing of zinc alloy jewelry company, has a complete and scientific quality management system. Integrity, strength and quality of Dongguan Da Ling Shan Chang Sheng processing hardware store by the industry recognition. Welcome friends to visit, guidance and business negotiation. Main hardware store Dongguan Chang Sheng metal shell hdmi adapter hdmi metal shell plating quality ● color can according to customer requirements. Dongguan Da Ling Shan Chang Sheng processing hardware store zinc and aluminum die casting is ── kinds of zinc die casting parts as the main component. This part surface ── very dense surface layer, which is the evacuation of the porous structure, but also a lively amphoteric metal. Therefore, only the use of appropriate pre-treatment methods and plating process, in order to ensure on zinc alloy plating layer with good adhesion, meet the requirements of qualified products. Plated zinc alloy material commonly used for ZA4-1 zinc alloy products processing plants, the main ingredients are: aluminum 3.5% to 4.5% copper 0.75% to 1.25% 0.03% 0.08% magnesium, the balance being zinc supply zinc alloy jewelry the sum of impurities ≤0.2%. The amount of copper-zinc alloy 925 high grades, but also easy to plating. Typically, the density of zinc alloy is 6.4 ~ 6.5 g / cm, if the density of <6.4 g / cm, prone to blistering and pitting after plating. In short, when the selection must strictly. In addition, die-casting mold must be designed to avoid to bring insurmountable plating defects (such as pitting). Zinc alloy jewelry | Chang Sheng Hardware (certified) | zinc alloy provided by Dongguan Da Ling Shan Chang Sheng processing hardware store. Dongguan Da Ling Shan Chang Sheng processing hardware store (shop1379091614724.1688.com) is Dongguan, hardware accessories leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Chang Sheng Hardware in leadership with the staff warmly welcome all inquiries negotiations to create Chang Sheng Hardware a better future.