Packaging boxes, as the name suggests, are boxes used to package products. They can be classified according to materials such as: paper boxes, iron boxes, wooden boxes, cloth boxes, leather boxes, acrylic boxes, corrugated packaging boxes, pvc boxes, etc., or according to the product name To classify such as: moon cake box, tea box, wolfberry box, candy box, exquisite gift box, native product box, wine box, chocolate box, food, medicine and health care product box, food packaging box, tea packaging box, stationery box, etc. Packaging box function: to ensure the safety of the product during transportation, and to improve the grade of the product. The main material of tin cans: tinplate.