How to create custom taxonomies
WooCommerce Product Table fully supports custom taxonomies. You can list them as columns in your product tables, and in filter dropdowns and widgets.
How to create custom taxonomies – for developers
How to create custom taxonomies – non-developers
You can also create custom taxonomies quite easily using Custom Post Type UI or Toolset Types. Each of these free plugins let you create a taxonomy and assign it to the Products post type (i.e. your WooCommerce products).
Once you have created a custom taxonomy, this will appear on the Add/Edit Product screen in WooCommerce with a tick box for each taxonomy term. You can add your products to one or more taxonomy term in exactly the same way as adding categories.
Here’s a YouTube video on how to create custom taxonomies with Custom Post Type UI:
How to display custom taxonomies in a product table
Please note that WooCommerce Product Table only lets you display custom taxonomy terms in a product table, and doesn’t add them to the single product page.