... , harbor, coal industry, power industry, cement industry, Nylon Roller/Idler:1, nylon rollers is with high wear resistance, low coefficient of ... chemical (acids, alkalis and organic solvents) corrosion; 4, nylon rollers can withstand repeated impact and vibration; 5, the Ambient ... nylon rollers has low noise (3-7DB),stable operation, long life (the life is 3-5 times of metal roller) Nylon Roller/Idler: ...