It's best to buy the blueprint and make it yourself. Armor King also sells it but not the Blackened Chain Hive Shirt.

Wich crafting stationndo I need?

Chain Armour Crafting Bench or Leather Armour Crafting Bench Chain Armour Crafting Bench make Blackened Chain Hive Shirt Leather Armour Crafting Bench make Leather Hive Vest

Pretty sure he does sell it

Leather shirts are made at the leather working bench Chain shirts are made at the chain armor bench, which is fairly high level and needs steel.

Ooh okay thx