Paper packaging materials can be divided into five types: ordinary packaging paper, special packaging paper, trademark packaging paper, oil-proof packaging paper and moisture-proof packaging paper. Ordinary wrapping paper is relatively strong and can be used as general packaging, such as kraft paper and chicken skin paper. Special packaging paper is named according to its use, and its properties are also different, such as thin and soft fruit packaging paper; The color of photosensitive protective paper is black and opaque; Trademark wrapping paper is used for printed packaging, such as candy wrapping paper; Oil-proof wrapping paper has the property of preventing oil from penetrating, such as plant parchment and butter paper; Moisture-proof wrapping paper is moisture-proof, such as tar paper and aluminum foil paper. According to rough statistics, there are dozens of kinds of wrapping paper.

General metal products, such as silver, iron, aluminum and aluminum alloy, usually use aluminum-magnesium alloy and aluminum-manganese alloy, also known as rust-proof aluminum alloy. Its characteristics are strong corrosion resistance, good polishing, long-term bright appearance, non-toxic, light and durable, so it is widely used to make metal packaging containers.