Ironmaking, Steelmaking, and Non-Ferrous Metal Smelting Workers X Keywords: Foreign matter removal

3 matching jobs found.

Zinc Distillation Worker

A metal smelting technical job that heats and vaporizes zinc ore or scrap in a distillation furnace, cools it, and recovers high-purity zinc.

Semiconductor Device Refiner

Technical job that refines high-purity silicon raw materials using chemical and physical methods to manufacture semiconductor device materials.

Melting Worker (Non-Ferrous Metal Smelting)

A manufacturing job that melts and refines non-ferrous metals, achieving the specified metal composition through temperature control and impurity removal.