... and IEC foreign standard,also customer’s special requirements.4) Type: pin type,post type,disc suspension type ... (ANSI): 56-1,56-2,56-3,56-4,56-5Pin Type Insulator for low & medium voltage ... ,PW-22-Y,PW-33-,P-11-Y,P-15-Y,P-22-Y,P-33-YHigh voltage pin type ... st-10/J,st-15/J,st-20/J,p-20-DType insulators for high voltage (AS): LP, ... ANSI:54-1,54-2,54-3,54-4,54-5 e. Spool Insulators for ANSI & BS 5) Colour ...