1.High quality, high efficient 2.more professional 3.reliable performance screw conveyorSpiral conveyor is widely used in various industries, such as ... and small block, such as coal, ash, slag, cement, food, etc. The material temperature is less than 200 °C.Conveyor ... , and the slag-like material; in the chemical, construction, food, coal and other industries widely used. Features:1, simple structure ...