As best as we can tell, Mike's monologue in reality is a mix of things that actually happened when he visited China and things that he just heard about or researched, which he then pretends that he witnessed first hand. He pretends that he just stumbled upon an array of workers who typify all kinds of harsh things somebody might face in a factory that makes iPhones and iPads.
And the most powerful and memorable moments in the story all seem to be fabricated.