Railway Polymer Post Insulator
1.1 End fittings are crimped onto fiberglass rod with voice-operated displacement type crimper
1.2 The connection location between end fittings & rods is fused with sheds housing by the overall high temperature vulcanized silicone rubber injection molding as it could minimize the interface.
2.1 Silicone rubber housing
2.2 ECR fiberglass reinforced epoxy resin rod