How can I pull metafield data into Gempages?

Hi there

Hope someone can help. I am trying to put something in our product description so it looks like this:

Manufacturer XXX
Material Glass
Finish Glossy
Colour White

I want it to pull the correct value from the metafields I have set up for my Google Shopping feed already. How do I do this? I know I need to put Liquid code in Gempages to pull the data in but I have no idea and can’t find anything on the web to help. For example the Metafield for the material in my data is mm-google-shopping.material so how do I reference this in that section of the table?

Thank you from a Newbie!

A