This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
GIC cathodic protec pl.svg Schematic illustration of cathodic protection system Ilustracin esquemtica de un sistema de proteccin catdica para proteger una tubera de la corrosin GICcathodicprotec UTC GICcathodicprotec Antti Pulkkinen Original uploader was Axpulkki at org en derivative work Joanna Komider talk polish version