I was trying to find some weapons that have both chance to freeze and chance to stun on the AH, and to my surprise I could not find a single item that had two different procs (freeze, stun, knockback, fear, immobilize etc.) Of course, it could very well just be a case of such weapons having poor damage and not being sold on AH.
Is it possible for the D3 loot roll to generate items with multiple proc types?