High Voltage Porcelain Strain Insulator 1.IEC,ANSI,GB etc is applicable. 2.Certified by ISO9001:2000,14001 High Voltage Porcelain Strain Insulator1.IEC,ANSI,GB etc is applicable.2.Certified by ISO9001:2000,140012.3. we can design and produce according to the drawing.Standard:IEC,ANSI,BS,AS,DIN,CAN and GB and etc.Colour: light gray,brown,white,sky blue and etc.Non-standard products:Designed by TCI ...