1.Standard of IEC 2.Materials:Glass insulator 3.Main Diameter D:255mm H14mm 4.Professional manufactury Specification:1) Porcelain or glass insulators for low & medium or high voltage2) Voltage: 0.4KV~132KV3) The disc suspension insulator can be met BS,AS,DIN,ANSI and IEC foreign standard,also customer’s special requirements.4) Type: pin type,post type,disc suspension type,spool/shackle type, ...