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33 jobs found.
Ceramic Raw Material Grinder
This occupation involves grinding raw materials for ceramic products (such as clay, feldspar, limestone, etc.) into powder using crushers, processing them into a state usable in the product manufacturing process.
Rakkyo Pickling Worker
Specialized worker who performs raw rakkyo material selection, preprocessing, pickling, sterilization, and packaging in one continuous process, preparing products for shipment.
Ammonium sulfate manufacturing worker
A job that manufactures ammonium sulfate (ammonium sulfate) by reacting sulfuric acid and ammonia, and performs purification, drying, and quality control.