Common flat rubber belt,also called transmission belt,commonly uses high quality cotton canvs as its skeleton layers. The surface of the canvas is scrubbed od coated with appropriate rubber,and then several layers of rubber canvas adhere together to form the flat rubber belt.On the longitudinal seam of the belt,enclosing rubber is used to make the seam firmer,and better adhered together.The flat rubber belt has the characteristics of high strength,good flexibility,and small elogation in use. It is mainly used in factories,mines,docks,metallurgical industru and ect,and also widely used in ordinary mechnical power transmission,great power processing of grains of rice and wheat,irrigation equipment,wood cutting and other power transmitting equipment for industry and agriculture. Therefore it pays more and more important role in various type of power transmitting equipment.