Posted Oct 3, 2010 - 3:51 AM
Leatherworker deals in leather, animal pelts/hides for shoes, belts, bags, leather clothing/armor/straps, etc.
Goldsmith deals in fine metals (copper/silver/gold/etc), bone and jewels, necklaces, rings, ornaments, staff/wand/weapon/armor jewels/stones.
As far as your questions regarding Culinarian, yes, yes, and yes.
Alchemist makes potions, curatives, poisons (including poison weapons and such), armor dyes, various food ingredients, etc. They can also convert crystals/shards.
Armorer creates metal armor/tools and shields and parts, not all armor.
Blacksmith creates metal weaponry/tools and parts, but not all weaponry.
There's a lot of cross class stuff. Pugilist weapons aren't made by one class, for instance. Bone weapons are made my goldsmith, but poison weapons are made by alchemist, but iron weapons are made by blacksmith. To boot, the vast majority of more complex items take 2-3+ crafts to make entirely from scratch. No one craft really dominates a single product entirely.