This is going to be a problem. Thirty plus years of de-industrialization, along with moving most of that capacity to a communist country, has taken its toll on domestic manufacturing.
Even if we cut off imports from china, it will take years to bring us back up to what we used to be able to produce. The whole domestic supply chain has been systematically eliminated.
In the short term, expect something along the lines of an OPEC style embargo of industrial products by china. It will hurt, possibly enough to break our will and capitulate to the chinese.
With today’s tech, from prefab steel buildings to computerized lathes I think much quicker than “years”.