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741 |
Crushers, Grinders and Mixers | Workers in this unit group crush, grind, mix and blend chemicals and other materials employed in chemical and related processes. Their functions include: reducing solid chemicals and related materials to suitable size for further processing; grinding and pulverising solid chemicals and related materials; mixing or blending solids or liquids used in chemical and related processes; performing related tasks.Operators of crushing machines employed in ore-treating are classified in 7-12.30. |
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