I am a carpenter. I want to find carpentry work in a decoration company.

If you are an experienced carpenter and have accumulated your own contacts, then I don't recommend you to join the decoration company. Unless you want to find a job with a stable monthly salary, it is strongly recommended that you can take some jobs yourself, so that you can earn more money. If there are no channels, you can consider going to the local labor market, or some decoration companies to recruit, and then download recruitment software such as Fish bubble net, which is more reliable and still possible.