Shrink packaging machine is an automated packaging equipment used in software, biscuits, printing, pharmaceutical and flooring, ceramics, beverages, beer and other industries for external packaging. The use of heat shrink film packaging can save information and costs for box packaging, and its efficient operation makes it very popular among enterprises. There are fully automatic high-speed edge sealing machines, fully automatic L-shaped sealing machines, and semi-automatic sealing machines matched with shrinkage furnaces for heat shrink packaging.