... Diameter D:255mm H14mm 4.Professional manufactury Specification:1) Porcelain or glass insulators for low & medium ... Disc InsulatorsDisc Suspension Insulators for HV LineASNI:52-1,52-2.,52-3,52-4,52-5 ... InsulatorHigh Voltage Lines Pin Type Insulator (ANSI): 56-1,56-2,56-3,56-4,56-5Pin Type Insulator for low & medium ... voltage lines (ANSI): 55-1,55-2,55 ...