What is "valmazzinghi"

/ is a hamlet and seaport in the Labinstina peninsula in Istria County, Croatia. Valmazzinghi started as apartment dwellings, around 1925-30 as a cement mining town, for the cement workers and their families. After WW2 Valmazzinghi's name was changed to Koromačno. All of the settlements' names in Croatia were changed due to language change from Italian to Croatian.