From a technical perspective, in the application of PE materials, cold cutters can completely replace hot cutters, and they are more stable, easier to maintain, and have a longer service life. In principle, MEPER blow molding prefers to design with cold cutting methods, and hot cutters are only used for special bottle types or products made of PP materials. Therefore, especially for bottle types above 5L made of PE, MEPER blow molding is basically designed with cold cutters.