Wow, that first track's nice!
Sorry, but I can't help you with the names of that or the other track you're seeking, but they sound like they're from the Langlois Filmusic library which Jack Shaindlin owned and composed. He also had a later label called Cinemusic which was released on LPs, and there are quite a few of those albums on that label with an industrial theme. Any one of those might have those two compositions.