The only thing you need to add them are those tags above. Open up the "raw" then "objects" folder of your DF package and look for a file named 'inorganic_metal.txt', this file contains all the properties and tags for each metal and material.
Find the metal labeled [INORGANIC:BRONZE] (you can search this btw) and add the [ITEMS_ANVIL] tag after [ITEMS_ARMOR]
For Black Bronze/ Bismuth Bronze armors and weapons add the tags:
[ITEMS_WEAPON][ITEMS_WEAPON_RANGED][ITEMS_AMMO][ITEMS_DIGGER][ITEMS_ARMOR] below the [MAX_EDGE:10000] tag to the [INORGANIC:BLACK_BRONZE] and [INORGANIC:BISMUTH_BRONZE] definitions.
Essentially what these tags do is tell the game engine that these materials are suitable for the production of weapons (axes, swords, maces, ect), ranged weapons (crossbows, bows, ect), ammo for the ranged weapons (bolts and arrows), pick-axes, and of course armor.
Once you make those changes and save the file any new world you generate will allow you to use any smelter to make tools, weapons, and armor out of those materials you changed. If you want to update an existing save you have then open the save folder that has your data and find the 'inorganic_metal.txt' and make those changes. Note that making the change in the save folder will not carry over to newly generated worlds. It will only affect that save.