... install,fast delivery 3.ISO9001:2008, SGS Vibration Damper For ADSS/OPGW CABLEVibration Damper photo:4D series Vibration Damper is ... 800800~1000Q’ty1246At critical span, usually use more vibration damper for safety.Choose model:When choosing the damper, two factors ... Dia. of Armour rods.Installation hint:Notice:1,According as calculation,installed the vibration damper with out armour rod, when the ...