The light belt core is made of cotton, nylon, polyester and other fabrics. There can be a covering layer or no covering layer outside the belt core. The covering layer types are divided into rubber type (including rubber and plastic type) and plastic type. The surface of the light bag can be smooth Yes, it can also have various patterns of deep and shallow patterns or horizontal strips, partitions and corrugated ribs. The transmission surface can also have longitudinal positioning strips. The light belt can be wrapped or cut. Product standard: 　　HG/T2818-1996 "Light Conveyor Belt" 　　1. Strength specification (N/mm) 80 100 125 160 200 250 315 400 　　 2. Width specification according to GB/T4490-1994 　　 3. Total thickness specification (mm) 0.5 0.8 1.0 1.3 1.6 2.0 3.0 4.0 5.0 5.6 6.3 8.0 Technical requirements: 　　 1. The physical properties of the rubber-type lightweight covering 2. The longitudinal full-thickness tensile strength of the lightweight belt shall not be lower than its specification value, and the longitudinal full-thickness elongation at break shall not be small 10%, the longitudinal reference elongation is not less than 4% 　　3. The bonding strength between layers is mainly used in: 　　 plane conveyor belt (long-distance conveyor belt), inclined conveyor belt (inclination angle ≤19°C, trough conveyor belt, smoke Cabinet bottom belt, electronic scale belt, hoist belt (with skirt, baffle or rake nail) reciprocating belt, sidewall belt