manufacturing

Hello, I just found this video about nittaku's manufacturing process in case hasn't been posted before These types of videos makes me wonder, where are all that stuff that's been manufactured and not sold go anyway? I know this apply to any business but I mean, the EJs must be what keeps...

i wonder .. what is the required experience in rubbers manufacturing ?? is technical management degree good for this work .. artificial intelligence ?? i'm interested in this aspect , i hope anyone can give me some information about entry in rubber manufacturing