The sealing method of the packaging box manufacturer is different from that of the carton manufacturer. According to the different sealing designs of the product, the use performance of the carton can be improved. The different methods of side opening or front opening can not only meet the needs of the product but also make it more convenient. Packing and receiving items, as well as improving the protective performance of some products that need to be sealed, so the market for cartons is also very extensive.