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A pneumatic rice polishing system, based on jet-polishing technique of metal surface, has been developed to minimize broken. This consists of 5cm diameter polythene pipe; inner surface is lined with hard abrasive material, a blower and a collection system, and no moving part. Brown rice and air are fed through 180° scroll and flow through abrasive pipe. The system used 28.2ms −1 airflow, 0...
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