Technician A says that any cleaning chemical can be used to clean aluminum parts or components. Technician B says that most chemical cleaners are strong soaps called caustic materials. Which technician is correct?

Technician B is correct

Explanation:

Most of the cleaning agents are usually caustic materials and they're mostly basic in pH (higher than 7) to avoid any form of reaction with the surface/object being cleaned.

Not any cleaning agent can be used to clean aluminum part because some cleaning agent might have reaction or adverse effect when used on aluminum part.