... (FRP/GRP) 2. epoxy resin, With high mechanical strength FRP insulator is made of fiberglass or ECR-fiberglass (FRP/GRP) and ... , age resistance, used for silicone rubber composite insulator, pocelain insulator, composite hollow insulator, Pillar insulator, cross arm insulator, electric railway insulators, HV switch, drop switch ... -30 mmLength: 1000, 2000 mm, and according to request. FRP insulator