Dear P” Nee,
After discussed with factory, They need to put a core paper because that paper can help maintain the balance between the box and help boxes leaned forward and gape to happen,
Because the some boxes is bulgy and make the shape is not the smooth all the boxes otherwise they can’t able to closed the container and boxes easy to dropped when the buyer open the container,
However they will try to shorten and use with the bulging box only. So if you have other suggestion kindly let me know at once, I will try to discuss with MG of factory again. Thanks,
Best Regards,
Lilly