1)main material:porcelain 2)ANSI,IEC standard 3)OEM/ODM High voltage pin type porcelain insulator 1) ... PIN tpye insulators2) main material:porcelain3) standard: ANSI,IEC,ISO9001,KEMA etc.4) Item NO.: 56-1, 56 ... -3, 56-4, 56-5 series RemarkSample availableMAIN DIMENSIONS AND STANDARD PARTICULARS AS FOLLOWING TABLE: Class ANSI56-156-256-356-456 ...