Volume 3 of timber species in general, the lower the corrosion rate. In addition, oxygen, metal ions (especially iron ions), etc. may also promote the formation of fuel radicals. 2. Chemicals discoloration caused by (1) the characteristics of chemical agents cause discoloration. Chemicals cause the wood surface color change is an important change in the color of a timber class. Features: ① fast response, discolored wood in a short time; ② mostly thrown wooden showcase in the process, or after the end of the process; ④ reactions; ③ affect the reaction premise Hanzhong wooden showcase, such as temperature, time, and so on by PH occurred heartwood. Milk cleaning method if you can not drink expired milk, do not throw away, you can use it to maintain showcase. With a clean cloth dipped into milk at Xianyang wooden showcase, and then use the cloth to wipe the table, such as wooden display cabinets, works well to remove dirt. Finally, remember to wipe the reuse of water, otherwise there will be residual milk and milk smell. This method is applicable to a variety of leather, paint, marble, Baoli board, and other display cabinets. Wooden showcase Baoji, Shaanxi, Boha Showcase (certified), wooden showcase provided by the Shaanxi Boha Showcase Productions Ltd. Shaanxi Boha Showcase Productions Ltd (www.xabhzg.com/) is Xi'an, exhibition equipment leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Shaanxi Boha showcase leadership with the staff warmly welcome all inquiries negotiations to create Shaanxi Boha showcase a better future.