EP belt (polyester and nylon): The advantages of nylon belt are good elasticity, high strength, impact-resistance, flexibility and trough ability, and limited elongation. Nylon belt is preferred for conveying powder, small or medium size materials with high speed in a medium or long distance. NN belt (nylon and nylon): NN belt is as same as EP belt, only with larger limited elongation. Conformance of DIN22102(German), AS1332(Australian), and JISK6322(Japanese)