a tin of... is 'une boite de ...' in French.
boîte de conserve
Tintin est belge (Fonetically: Teintein è belzje)
the dog is called "Milou"
Proper names, such as Tin-tin, do not change from one language to another.
Tin soup is de la soupe en boîte (most likely 'en brique' here) in French.
Naturally, from The Adventures of Tintin.
afulununu
It's spelled just the same way, but when verbally saying it you would drop the s and add an accent: Tin-ee
Une boite is a box in French; this is also the name for a can or tin of food.
The dog's name in Tin Tin is Snowy, known as Milou in the original French version of the comic series. Snowy is a loyal companion to Tin Tin, accompanying him on his adventures and providing comic relief with his playful antics.
'une feuille d'aluminium'
Etain There is an accent over the e