The color of the powder coating coating is mostly composite color. This involves the color matching, baking temperature and time will affect the formation of the final surface color. Nowadays, there are many restrictions on the color matching of instruments, such as the difference in pigment batch a

In the evening of a black night. A novice thief entered a villa and wanted to open the strongbox of the richman. The thief spent all hours using all the tools, but found the strongbox unscathed."This is too strange!" said the thief. "I can understand why I can't open the strongbox, but why can't I