China is a significant source of materials for only a small fraction of products on President Donald Trump’s proposed list of tariffs, but they could disproportionately hit some U.S. manufacturers that depend on Chinese imports by driving up costs and forcing them to raise prices.
The tariffs unveiled last month would impose 25% duties on more than 1,300 products across 872 categories touching a swath of American industries. They would hit an estimated $50 billion of Chinese imports ranging from factory equipment to household...