Long Rod Suspension Silicon Rubber 120KN 24KV FXBW Insulator Product Description Pin Insulator is special for badly polluted areas, high mechanical tension load, long span and compact power line.They have feature of light weight, small volume, unbreakable, anti-bend, high strength for anti-twist and strong explosion protection. Components: Core rod: made of FRP rod or ECR rod Sheds: made from high quality HTV silicone rubber, through high pressure injection moulding