Is BYD fitter an assembly line?

BYD Department II recruits fitters and electricians to prove whether they have work experience and are under 35 years old. The working environment is comfortable. They don't work on the assembly line. The fitter's operations mainly include chiseling, filing, sawing, marking, drilling, reaming, tapping and tapping (see thread processing), scraping, grinding, straightening, bending and riveting. Fitter is the oldest metalworking process in mechanical manufacturing, and BYD fitter is not an assembly line.