Output multiple meta data from a post type not just the page_id!

Hi guys,

I’ve followed this documentation: https://codex.www.ads-software.com/Custom_Fields

That explains to use the following function to display custom fields from a post type:

get_post_meta($post_id, $key, $single);

Although, I’m trying to achieve the same but from ALL post_ids, I basically want a page that grabs all the custom fields from that particular post type, does this make sense?

Has anyone got any pointers? I can’t seem to find anywhere that explains how to do this, yet I’m sure this is a common request.