High Concentration × Keywords: Foreign Matter Removal
20 jobs found.
Lime Sorting Worker
Workers who visually or mechanically sort and classify limestone blocks, the raw material for lime, by size and quality to provide materials suitable for the manufacturing process.
Serplane Inspector (Raw Silk Manufacturing)
A profession that inspects raw silk on serplanes in the raw silk manufacturing process, detecting defects and evaluating quality such as dimensions and luster.
Fruit Sorting Worker (Wholesale/Retail Stores, Shipping Cooperatives, Agricultural Cooperatives)
A job that sorts agricultural products (fruits and vegetables) based on shape, color, and quality, and performs grading and packing into boxes.
Cotton Comber
A manufacturing technician who combs cotton fibers, removes impurities to produce uniform fibers, and prepares them in a state suitable for the next spinning process.
Tea Leaf Sorting Worker
This occupation involves sorting and selecting tea leaves by grade and standards using manual labor or machines in tea factories to ensure quality, and removing defective leaves and foreign matter.
Hand Ore Sorter
An industrial job that involves sorting ore by naked eye or manually to remove impurities and low-value minerals.
Converter Worker (Non-Ferrous Metal Smelting)
A manufacturing technician who operates a converter to melt and refine non-ferrous metals at high temperatures, adjusts chemical composition, and produces high-purity metal products.
Clay Refiner
A manufacturing job that refines clay, the raw material for pottery and porcelain, removes impurities through processes such as purification, kneading, and blending, and stably supplies raw materials for pottery production.
Trommel Worker (Ceramics Raw Materials)
Trommel workers classify ceramics raw materials using a rotary screening machine called a trommel, remove foreign matter, and adjust particle size as manufacturing operators.
Lens Wiping Finisher
A profession that removes dirt and foreign matter from the surface of optical lenses in the final finishing process to ensure quality.