l Try not to open the unused paper cups, keep the paper cups sealed in the box, and do not spread them outside to prevent the paper cups from becoming yellow due to moisture.
l The paper cups to be used should be fastened to the plastic bag after taking out the bag to prevent the remaining unused advertising paper cups in the bag from getting wet.
l Store paper cups in a dry place as much as possible, and seal the carton with sealing glue.
