Enamel is mainly divided into three types: painted enamel, filigree enamel, and filled enamel.

Enamel painting, also known as enamel color, is a process of directly painting patterns on a fired base glaze using enamel pigments and then firing them in the furnace. There is no need to pinch or carve patterns on the base glaze. There are various types of enamel substrates, including metallic substrates such as gold, silver, copper, and non-metallic substrates such as glass and ceramics. Enamel makers not only need to master the enamel firing process, but also need to have painting skills, which are relatively complex.

Wire cutting enamel refers to the process of cutting out threads during tire making, and then firing the enamel glaze between the threads. The full name of "cloisonne" in China is "copper wire cutting enamel", which belongs to a type of wire cutting enamel. Cloisonne "is a common term in Chinese folklore for" copper based wire cutting enamel ".

Enamel filling inside refers to the process of casting a tire without the need for wire cutting. The patterns and pits are directly cast or carved during the casting process, and the pits are filled with enamel color and then fired.

The broad definition of enamel products mainly includes gold, silver, copper, glass, ceramic, etc. The process mainly includes: design, tire making, color painting, furnace burning, polishing, and polishing. Guangdong mainly focuses on painting enamel, while Beijing mainly focuses on wire cutting enamel, with unique craftsmanship from the north and south. Both are two treasures of traditional Chinese craftsmanship!