1.As the cotton-canvas,nylon or EP canvas are made as the carcass,the belt has good elasticity,excellent troughability, and low elongation.The rubber cover, which is made from chemical resistant materials, has fine anti-chemical corrosiveness and good physical property. 2.It is specially made for those materials which would dissolve expand or corrode the belt. 3.It is suitable for conveying material with chemical corrosiveness in chemical factory,chemical fertilizer factory, paper mill, mining industry etc.