Dia 50mm-219mm, length 190-3400mm, which are used in the steel industry, harbor, coal industry, power industry, cement industry, Nylon ... -lubricating, no oiling, easy to use in adverse conditions;3, nylon rollers is with the anti-static, anti-smoldering resistance, aging ... ; 4, nylon rollers can withstand repeated impact and vibration; 5, the Ambient temperature range of nylon rollers: -40 °C ~ 80 ...