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. en April Schematic illustration of cathodic protection system Ilustracin esquemtica de un sistema de proteccin catdica para proteger una tubera de la corrosin own original text selfmade created June Antti Pulkkinen Release to the public domain GIC cathodic protec pl svg No other versions Axpulkki Original