Armor/WaW

A few questions:

1) Any1 knows stats of WaW zone's armor?
2) What stack on armors, I know for example if u put a +1 rune on a piece this will not stack with another same+1 but if I put a damage reduction on gauntlets, will this work only if hit on gauntlets or for all body?
3) If I have boots +4af, will be 4 AF if hit on boots or global 4 AF?
4) If I put +50hp on armor, will this stack with a +30hp weapon/focus/shield?

Ty

Bump.

1)same as the final armor from droknars forge

2)no clue

3)it hits just those boots

4)yes it will

Thx for your kind answer but...where is droknars forge? What stats has that armor? Assuming that droknars forge is not a WaW zone why I'm supposed to wait the "favor"?
I'm just a newbie PvE guy so... pls be patient -.-

Bump!