Symbol 6306 from IEC 60417 - Title/Meaning: Welding power output, manual metal arc welding with covered electrodes 
Function/description: To indicate on a rating plate that the type of welding output is for a welding process of the arc welding with covered electrodes.
Own work using: iso.org/obp/graphics/grs/1d948a69-a469-4c47-a012-c7df08ab259c 200.png
Vectorization:  Mrmw