After the completion of the professional upgrading of equipment and special process innovation, the slitting length of composite filter rod can be expanded to 60mm, which is almost double length of the traditional filter rods, which is up to 30mm. Over-length filter rods are more intuitive and dominant in appearance, and the unique design increases innovation and uniqueness to the cigarette product, which is designed to be flexible and attract consumers' attention and interest.

 In addition, in terms of functionality, it can strengthen the absorption of harmful components in the smoke, improve the filtration efficiency, especially tar, improve the absorption of flavour and enhance the quality of smoking.