As the name implies, the box is a box for packaging products. It can be classified according to materials such as: paper box, iron box, wooden box, cloth box, leather box, acrylic box, corrugated box, pvc box, etc., or by product name. To classify, for example, moon cake boxes, tea boxes, boxes, candy boxes, exquisite gift boxes, souvenir boxes, wine boxes, chocolate boxes, food and medicine health products boxes, food packaging boxes, tea packaging boxes, pencil cases, etc. Packing box function: to ensure the safety of products in transportation, improve the grade of products, etc. The main material of iron box cans: tinplate.