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14 jobs found.
Casting material charging worker (Casting manufacturing)
A manufacturing occupation responsible for loading materials such as sand and metal powder into sand molds or metal molds in the casting manufacturing process to form casting molds.
Core maker
A job that manufactures hollow-shaped parts (cores) for metal casting and finishes them to a state ready to be set in the mold.
On-site Mixed Concrete Manufacturing Worker
Specialized occupation that mixes cement, sand, gravel, and water in appropriate proportions on construction sites to manufacture and supply concrete. Performs quality control and slump checks to support placement work.
Aggregate Extractor
Worker who extracts aggregates (gravel, sand, clay, etc.) used in concrete and paving materials, and handles crushing, sorting, and transportation.
Material Batching Operator (Ready-Mixed Concrete Manufacturing)
This occupation manufactures ready-mixed concrete by batching cement, aggregates, water, admixtures, etc., in appropriate proportions and managing quality.
Placer Mining Worker
Workers who extract placer minerals from rivers, seas, and quarries, and perform loading and sorting to prepare them for shipment as civil engineering and construction materials.
Sandblast Worker (Metal Products)
A job that involves blasting abrasives such as sand onto the surface of metal products at high speed to remove rust and old paint films, adjust surface roughness, and perform pre-treatment for painting and plating.
Sand Washer (Nightsoil and Sewage Treatment Facilities)
Worker responsible for removing sand and solids from nightsoil or sewage, in charge of the preliminary stage of the purification process.
Sand Extraction Worker
A job that extracts sand using heavy machinery or manual labor in riverbeds or quarries, and sorts, loads, and transports it according to quality.
Washed Sand Worker (Washed Sand Manufacturing Industry)
Washed sand workers remove impurities from raw sand and manufacture construction aggregates with uniform quality.