Packaging machinery can be divided into fully automatic packaging machinery and semi-automatic packaging machinery based on the supply mode of packaging materials and materials; If divided by the scope of use of packaging materials, it can be divided into general packaging machines, dual-use packaging machines, and specialized packaging machines; According to the type of packaging, it can be divided into individual packaging machines, inner packaging machines, and outer packaging machines. Packaging machinery used for processing packaging materials and containers includes composite material processing machinery, bag making machinery, plastic hollow container processing machinery, etc.