For sure, China is a manufacturing juggernaut, no question. They also have 4 times the population of the US. But in terms of raw numbers, absolutely China is the biggest manufacturer
And every dly that goes by that companies send more shit there to be made blows my mind until you realize that corporations have no loyalty to the country in which they reside and stay only as long as the country subsidizes them and allows them to get away with paying no taxes.