What is the use for the crude components and the simple components found in the Battle Shop, please?

you can combine the crude components with Basic Energized Blaster, (the loot dropped from 5 wins on Aboxalypse) to create a new weapon. You can then combine that with the simple components to create another weapon, then combine that with standard components to create another and so on and so forth. Hope that makes sense.

The final weapon/wearable you can make is the Volatile Energized Mecha.

It makes perfect sense. Thank you for the information.

No problem. Glad to be of help!