How to sort the types of materials from one column according to position from other column

I have in Page1, column B, 5 types of materials. In column L, I have numbered the position of each one.
So, Position 1 to 6, is 'Plastic tube', 7 to 11 is 'Textil Tube':

Screenshot 2021-02-24 at 11.17.52 AM.png

I need a formula, in Page 2, to summarize all of this, that can calculate this automatically, what kind of material is in each postion .

Like this:

Position :
1,2,3,4,5,6,15,16,17 - Plastic tube
7,8,9,10,11,19,20,21,22 - Textil tube
12,13,14 - Heat tube


I tried a lot with IF but not a good result. Not even close...

Anyone can help?

Thank you