Sieving × Classification Details: Gravel, Sand, and Clay Extraction Workers
2 jobs found.
Magnetic Clay Extractor
Specialized worker who mines magnetic clay (clay), the raw material for pottery and building materials, and handles washing, sorting, and transportation.
Gravel Extraction Worker
Workers who use heavy machinery to extract, select, and transport gravel in rivers or quarries. They supply construction materials while performing quality control and safety management.