Hi, these are the names of the ways that are registered in Shahrdari (Muncipality)’s database for adding ref codes to ways, 
shahrdari:districts is a list of districts the ways are in (ie; 4, 4;8, etc)
shahrdari:name:raw (previously full) is the full listed name for the ways, which may be outdated or contain two names.
shahrdari:name:main is the main name of the road, listed as bold or underlined which has been seperated for easier management and since persian formatting sometimes makes the raw version hard to read
shahrdari:name:secondary is the most of the times old name the way is known by, normally listed in brackets.
All of these tags are added to make sure the refs are not added incorrectly, this is not as important for 3 digit refs which have already manually been brought into the map, but will be very important for 4 digit refs which I am yet to bring in to the map.