How to make a page where two content types are combined It should be a portfolio website. I'm going to place there information about projects I was engaged in and products I designed. The relationships between project and product nodes are those:

--Project 1
----Product 1
----Product 2
----Product 3
--Project 2
----Product 4
----Product 5
----Product 6
etc.


My question. How to create a page where placed all project articles and under each project article there should be related product article teasers. Like on image.
In views you can "Group By" the parent nodes. So if you were using entity references to do the relationship, you would have it as a field in views and group by it.

Are they different content types? How are you relating the children to the parent?

If the default Group By isn't enough, there's a module called Views Field View which can put a view inside a view but that could be a bit unnecessary.