In the world of mecha, there are the Super Robots (Reideen, Mazinger, etc), the Real Robots (Gundam, Macross, Layzner) and the HYPER-Real. Sounds like you are interested in Hyper-real mechs, like those in the old Battletech games.
If you want styrene kits, check out Votoms. the Votoms Scopedog is a pretty realistic mini-mech/power armor hybrid.
If that's not "industrial" enough for you, you might want to check out Armored Core. These kits are super-detailed, and have very crisp molding. The kits are about the most non-humanoid mecha models being put out right now.
Is this what you are looking for?- http://www.entertainmentearth.com/prodinfo...1279#LargeImage