Wood furniture maintenance, three common maintenance methods are toner maintenance technology, ointment maintenance technology, and self-spraying tank maintenance technology. Common maintenance processes are filling, polishing, coloring and color changing. It's simple to say, but it needs to involve filling materials, polishing and coloring technology, and color matching of toner and ointment. This is a very complicated and comprehensive technology. It is suggested that if you really want to do it, you still need to study Zunyi systematically.