We can produce porcelain insulator according the IEC,ANSI,AS,BS,DIN,GB and we ... .Material: Porcelain2.Standard: ANSI3.Voltage: 110KV and below4.Glaze color: gray or brownWe can produce transformer bushing insulator according IEC,BS,AS ... company have become the qualified supplier of GE and COOPER. Porcelain Insulator