I can with absolute certainty. No.27 and 56 are HP black ink cartridges. No 56 is the big brother of No 27. As you say 56 contains more ink. No 28 and No 57 are the colour twins. again No57 contains much more ink.
OnePlus 5T review: Hands-on
Illustrator Andrés Lozano on his improv line work, brazen use of colours & hand sketching
iPhone X review
Comment envoyer gratuitement des gros fichiers ?