Ranger skill Crossfire has 3 second Bleeding duration by default.
I’m using the following runes in Heart of Mists:
x2 Superior Rune of Krait (2) +15% Bleeding duration
x2 Superior Rune of the Centaur (2) +15% Bleeding duration
x2 Superior Rune of the Afflicted (2) +15% Bleeding duration
Skill shows up as 3 seconds of Bleeding
When attacking target golem Bleeding ticks 4 times.