... fitting, end fittings of composite insulators polymer insulator fittingcomposite insulator fitting, polymer isolator accessories, end fittings of composite insulators, electric power fittings, insulator end ... fitting, polymer insulator fittingMaterials: cast steel, with hot-dip galvanization outsideTechnics: casting, forging, turning milling, milling, drilling, galvanizing,Specifications: both ...