Are welders tired of Dalian COSCO Shipping Project and the environment is good or bad?

I know a welder who works in a Japanese shipyard. He is an apprentice. He is very tired. He works overtime every day and is often hit in the eye. But he has overtime pay, more than one month 1000. He may be 2000 yuan or 3000 yuan after work. If he works overtime, it will be higher. I know some people earn 5000 yuan. Their environment is average. Work clothes are basically not washed, and it is useless to eat them. I don't know cosco. Although it is a big company, it may be similar. If you can get in, work hard and earn a few years. If you do well, you can consider going abroad for labor or something. I don't think this job will last long. It is still harmful to your health. It's not bad to save some money and open your own shop. For your reference.