nylon pulleys large diameter releasing wire nylon pulleys use for releasing large diameter conductors like ACSR 35--500KV 1)It could use for releasing large diameter conductors,like ACSR 350--500KV voltage line in transmission line.2)very smoothly Product numbertypereelsLoad(KN)DxWconductorweightmaterialG011FH1- 508x75L120508x75