Dodore belt

can this belt be traded for something good to a NPC?

GC-seals - is that good enough?

i had heard somehow trade for crafting gear

It... is crafting gear. Gear rarely serves as a trade-in except for augmenting some sets to some degree.

There's level 50 crafting gear you can trade other crafted items for at Talan in Mor Dhona, but he doesn't accept Dodore Belts for anything.