Toughened Glass Disc Suspension Insulator Standard:IEC,ANSI,BS,AS,DIN,CAN ... gray,brown,white,sky bl Toughened Glass Disc Suspension InsulatorA suspension insulator is an assembly of one or more shells ... supporting.In operation,it is always connected to insulator string.A suspension insulator set complete with the fittings is used ... specified by the customers. Toughened Glass Disc Suspension Insulator