Schematic line illustration of a worker in a hard hat stirring molten metal in a large crucible.

"Schematic hand-drawn illustration in vertical format: A worker stands in front of a large crucible filled with molten metal. The scene is simplified and non-realistic, like a technical sketch. The worker holds a temperature lance above the metallic surface to measure the temperature. Only essential details: basic outlines of the worker, protective clothing, the large crucible, liquid metal surface, and the lance. Clean lines, no shading, no realism. High-contrast schematic style." See more