Generally, we offer microwave popcorn bags bulk along with warranty service, within a limited period. Within the warranty period, if there is any quality problem due to poor workmanship or others caused by us, contact us. We offer return, replacement, as well as maintenance services. If the problems happen after the warranty expires or are caused by your improper use, you can also contact us. We will try our best to solve your problem, which is what our after-sales service is for.

Kolysen ​​is recognized as the a trustworthy flexible packaging brand in China. Kolysen Packaging Integration Co.,LTD. provides a wide range of pvc shrink film for customers. Kolysen flat bottom bag follows an extremely strict process in product design and development. With a sharp and vivid printing effect, it serves as a good tool for advertising. Kolysen Packaging has strong technical force, strict quality management system, and perfect after-service mechanism. Made of anti-bacterial materials, it is hygienic.

We commit to establish and maintain an effective environmental management system that extends further than just meeting the stated environmental legality. We continue to innovate to improve our footprint in production.