Hello, CAF PROAMBIENTE!
If I correctly understand your question, you need to create two different pages for each category (Please correct me if I’m wrong)
Unfortunately, just one Portfolio page is allowed.
But you can solve that using the Main (parent)category/subcategory system.
https://prnt.sc/ph9jey
You can have one main page, with the filter of the available product and services on it.
To have that, create your e.g. “What we do ” page as a main portfolio page
http://docs.theme-vision.com/article/setup-a-portfolio-page/,
then make your “Products” and “Services” categories as a Main-(Parent) Portfolio categories, and the products and services related to these categories as subcategories so on that way you will be able to show the of filter your products by Categories/subcategories on one page.
https://prnt.sc/ph9jey
https://prnt.sc/ph9rue
https://prnt.sc/ph9sb7
https://prnt.sc/ph9siq
https://prnt.sc/ph9ss1
Important:The portfolio category name must be one word (without space), (e.g “industrial_supply” ) otherwise the filter on the main page will not work.
Regards