Aluminum can be fresh and recruits.

The labor market and labor intermediary can find jobs, but they need to pay, and the cost is slightly higher.

A friend's introduction is more reliable, but it is prone to embarrassing situations where there is no work.

In the local talent market, there are more people and more information, and the competitive pressure is slightly greater.

Recruitment software, like fishing nets, needs to learn to identify true and false information.

As for wages, different regions, different processes and different bosses are all factors that affect wages, but the difference should not be great. The specific amount can be asked by friends around you.