Here is the answer.
Is anything made in the U.S.A. anymore? You'd be surprised - The New York Times
Basically, the products made in the US tend to be high-value, complex, for commercial or industrial use. Also packaged food, drugs, and chemicals tend to be made in the US. Low-value, simple, or consumer goods tend to be made elsewhere. The last bit - consumer goods - is why most people perceive that the US no longer makes anything. As of 2007 the US was by far the biggest producer of manufactured products. US manufacturing slumped in the Great Recession but has come back strongly.