What? B&M uses Clermont Steel in Ohio, this is Intermountain Lift in Utah. B&M's rails are made in Switzerland, and then shipped over to Ohio where the box spine, ties, and supports are fabricated. The trains are made in Switzerland. Intermountain lift has been responsible for most of the big premier rides I can think of, especially all the new ones like Full Throttle and Skyrocket II's. Also, some S&S and other projects like Cannibal at Lagoon. I think they bend their own rails, and I have to say I think they do a fantastic job. The new gen premier track is so smooth, mostly what I notice is shuffling that seems to come from the trains, not track, on rides such as Superman SFDK. I'm no engineer however, and Premier rides are smooth in my experience, also having ridden Mr. Freeze and Poltergeist which were manufactured by Intermountain Lift. I will say, though, that B&M's track quality is pretty much flawless, and they bend the rails with secrecy in Switzerland for a reason.
http://www.intermountainlift.com/#/work