the traditional plaque is divided into three types: wood, stone and metal, but most of them are wood, and stone and metal are rare. The inscription for the plaque was mainly made by dignitaries, celebrities and calligraphers at that time. The plaque is painted in black, but also in purple, red, blue, green, brown and other colors. The most common type of writing is a real gold plaque, which means that gold foil is applied to the words. Gilding is an important craft category in traditional lacquer art, and the gilding process is very particular. First of all, we must master the material proportion, density and dryness according to the four seasons. Secondly, the coating of gold glue must be uniform, and it is very important to master the "temperature". Not early, not late, not fast, not slow, and it should be flat, tight, bright and bright, with no obvious interface. In addition to gold plaques, some are painted with colored paint, the common one is bean green, and others are inlaid with ivory, animal bones or mother-of-pearl characters.