Where can I find a construction plumber in Shenzhen?'

You can go directly to the construction site to find the water and electricity foreman and invite him to dinner. You just said you could work hard. He must be able to contribute, and of course you can learn a lot. The salary is generally 800~ 1200 yuan. There may be more now. There are many times when you need to work overtime or take notes, and you may earn more. It would be better if there were acquaintances. It's easy to get in. Now there are fewer and fewer projects, but it's not a problem.