TAIPEI -- Almost anywhere you go in China, drills buzz, hammers thump walls and scaffolding towers into the sky while hundreds of migrants from the countryside cluster around the dusty gates of work sites slurping down noodle bowls to be on time for the next shift.Much of that gritty, noisy construction gets plowed into private projects. But a whole lot is also building airports. Low-cost housing has sprouted as a state priority since 2010 to ease impacts from a surge in commercial property prices. Highways and railways are growing in length, width and number, as any tourist can see. Overseas equity investors, get on board.