If we print in RAL3000/9016 from the behind of the small window, the rib has high risk of damage during the printing period, besides, the small black square which printed on the front side will be scratched easily when we print the RAL3000/9016 on the back side of the window and vice versa. Therefore, our decoration engineers suggest to print the RAL3000/9016 contents on the front side of the small window instead of on its back. Would you please kindly help to check and send us your acceptance or give us your comments? Thanks.