... more than 4% 2. Three-resistant conveyor belt (heat, acid, alkali) product implementation of standard HG2297-92. 3. Retardant ... , anti-burning type, acid type, oil type), heat-resistant conveyor belt, conveyor belt cold, acid conveyor belt, oil conveyor belt, conveyor belt ... heat-resistant conveyor belt, cold resistant conveyor belt, conveyor acid, oil and rubber conveyor belt on the cover for a minimum ...