Symbol discs and surrounds are industrial components primarily associated with automation and control systems, often linked to brands like Allen-Bradley (a Rockwell Automation company based in the U.S.). These products serve sectors such as manufacturing, packaging, and machinery, where they function as identification or interface elements on control panels, HMIs (Human-Machine Interfaces), or push-button stations. Symbol discs are typically engraved or printed with icons for standardized machine operations, while surrounds provide protective or aesthetic framing. Companies like Radwell and Grainger distribute such components as part of their broader industrial supply offerings, catering to maintenance, repair, and operations (MRO) needs.