What kind of registration certificate do you need to apply for Grade B qualification of municipal engineering design?

Class B personnel of municipal engineering design:

Three main structures;

1 secondary architect;

Register HVAC1;

4 registered water supply and drainage;

2. Registered power supply and distribution;

4. Registration power;

1 automatic worker;

Senior mechanical engineer1;

4 workers are on the road;

4 bridge workers;

2 senior environmental protection engineers;

The registration cost is 2,

There are 29 people in all.