... in overhead electric power transmission line construction.Outside Diameter: 508mm,660mm,822mm,916mm Technical Data: 508 mm stringing blockModelNumber ... sheaveRated Load(KN)Applicable Conductor ACSR(sqmm)Groove Dia(mm)Outside Dia(mm)Sheave Width(mm)Weight(Kg)HHD-660120 ... of sheaveRated Load(KN)Applicable Conductor(ACSR)Groove Dia(mm)Outside Dia(mm)Sheave Width(mm)Weight(Kg)HHS-9163120 ...