Retrieve complete soc name on Android

Hello,

I try to retrieve complete soc name programmatically on an Android device like it made on CPU-Z app for example that displays for my device :

By reading /proc/cpuinfo file and /sytem/build.prop I could have the following data :

I can also find CPU max clock.

But, it's impossible to me to get the same information that CPU-Z displays programmatically. Do you know how the app makes that ?

For example, where it finds Soc Architecture and Model ?

And then, to get complete name as Qualcomm Snapdragon 600, how they make that ? It's written somehow ? Or, they have a sort of database with board id and manufacturer with complete informations associated ?

Thanks for your answers.

Sylvain