... quality certified by ISO9001:2000.B). It works with environment temperature ranges from -20°C to +40 °CC). Standard components ... of frame, conveying belt, roller, tension device, transmission device, etc. It is widely used for conveying materials in mine, metallurgy ... such as coal, crushed stone, sand, concrete, fertilizer, grain, etc. The temperature of conveyed materials is less than 60°C. Length and ...