Uniques (Legendaries haven’t been implemented yet) are different, with ~5 exceptions (the claw/fang, beastking which you can get on 2 different axe bases & the Hammer of Lorent) uniques are set affixes with ranges.
All other item bases have a range for their implicits & the highest level bases are lvl 76. For each item slot there are usually a couple of different “types”, if you take one-handed axes, there are the Hand Axe, Battle Axe, Bronze Axe & Welryn Axe that all have increasing chance to bleed as an implicit. But most implicits on weapons/armour don’t fall into families, they just have specific implicits.