Outdoor 126kv-252kv?solid-core post line porcelain insulator: 1.Material:porcelain 2.Certification:ISO9001/14001 3.Delivery period:30-45 days ? Our outdoor 126kv-252kv solid-core post line insulator type?ZSW- series products?are high quality with favourable price,meet the customers'requiries.We are producing them in accordance with IEC,ANSI,DIN,AS,BS,etc standards.Surely,we also can do insulator according to our customers' drawings.if you are interested in our products,please don't hesitate to contact us. ? ?