The auto industry is juggling the need to cut costs while preserving its workforce to ramp up once factories reopen.
China's Shuoke sports equipment factory says robots have helped triple its production.
The country's workforce has shrunk 3 percent from 2012 to 2017; now its economy is slowing.
The company plans to leave the locomotive manufacturing industry in a few years.
Manufacturers complain of a rising "skills gap" among job applicants that is hampering their ability to grow and improve productivity.
Manufacturers are getting more done with fewer American workers.