1, long working hours: working for 14 and 15 hours every day all the year round, and the boss's leaders don't treat employees as people, only care about whether you can work or not, and nothing else matters.
2. Parts are very heavy, and one person can do multiple jobs: the assembly of automobile parts is very heavy, and some parts are very heavy. From the point of view of workshop management, I hope one person can do a variety of jobs. It's relative that a person is tired of doing multiple jobs. Some jobs frequently flow between several jobs, and some jobs may not need frequent flow, but the work content is complex and the parts are heavy.