There are 45 categories of trademarks. Group is the general name of 4-bit code subdivision under each category, and item is the general name of 6-bit code subdivision under each group.

Packaging box, as its name implies, is a box used to package products, which can be classified according to materials, including paper box, iron box, wooden box, cloth box, leather box, acrylic box, corrugated box, pvc box and so on.