They're rhetorically true, and we're having a rhetorical argument. China didn't build all of the bay bridge, no. They won several large parts of the contracts a

They're rhetorically true, and we're having a rhetorical argument. China didn't build all of the bay bridge, no. They won several large parts of the contracts and subcontracted many more. The exact percentage is meaningless, the important point for argument is that they had a large hand in it and both demonstrated and grew their engineering prowess by being involved.