... equipments and parts, drawing design, technical consult & support, equipment installation & maintenance and other related paid or free services ... of principles, classification of ore mixture. Application in Aerated Concrete EquipmentFly ash (or sand, stone dust) by the ... Rotary Kiln, Sand Washer, Sand Production Line, Ore Dressing Equipment, etc. Elva Wu/ Sales DepartmentSkype: defy003Tel: 86-371- ...