Some time ago I was researching my own endeavor on creating things specific to Khitai lore, and I stumbled upon a historian which researched the various ways the peoples of antiquity forged Steel. My own research was focused on East Asian civilizations, however, there were some information on how those differed from the other civilizations. For that, the professor then went on about some of the metallurgy techniques of the indo-european peoples.
Seeing that the Cimmerians are named by Howard as the ancestors of the proto-Indo-Europeans, Crom is related to steel forging, and for the distance of those civilizations, they had some unique ways of forging steel, ie, while Asian Steel was worked by processes of carburizing and decarburizing, the steel in europe was hardened by using different methods of carburizing it, and the process of working pig iron, rather than the timing of introducing it, which had its roots in the fact that Europeans used steel forging intermediaries and Asians did not.
It would be interesting then if you have instead of a “Shrine”, an “Anvil of Crom”, its priest might be a Smith, and it might be a craft station for a fine Steel. Like for example the “fabled” Noric Steel.