What on earth are you talking about...
First of all, why give us images? That does not help in the slightest.
The item codes are stored in the client and the server exe.
Second, there are 4 different armor and 4 different robes for each particular item code.
Which ones do you want to convert?
Fourth, why would you want to convert the level 105 armor (da125) to the level 105 robe (da225)?
You having a cross dressing Mardi Gras party on your server or something?
Fifth, almost all clients/servers are different, they have different item codes, new one, extra ones, changed ones. For all we know da125 could be a stone hammer on your server.
You really need to be more specific, actually be able to describe what you want to have help with in 100% detail.