Combat Knife Suggestions

Currently in the market for a good combat knife. Nothing bigger than 6-7 inches, but have some good weight for optimal slashing.

Please don't suggest pink girly knives; I find those insulting.

Also open to suggestions on what companies make the best battle-ready Chinese weaponry. My dream is to own a legit horse-cutter (zhanmadao). Currently own a battle-ready ox tail saber (Hanwei brand) and a wooden staff (which I'd like to trade in for a metal one someday).