Ordinary conveyor belts are widely used in building materials, chemical industry, coal, power, metallurgy and other departments. They are suitable for conveying non corrosive and non sharp block, granular, and powder materials at room temperature, such as coal, coke, sand and gravel, cement and other loose materials or bulk items. They can also be used for conveying bulk items with a stacking density of 6.5-2.5t/m3.