B Grade recipes

[BytchPudding]

Hey folks

Can someone tell me how to get B armor recipes like "Avadon Breastplate 60%" in classic?

There is no drop/spoil for it.
But the key mats exist... so there must be recipes.
Is there a quest?

Greets Cally

[NodeJs]

On TNT website have a informer u can find some info about drop's etc.. but u right theres no info about this recipe