1.rated voltage:220KV 2.confirm to GB/T19519-2004,JB/T8460-1996 3.certification:ISO9001 4.package: Carton 5.Offer OEM , ODM Composite post insulator is suitable for various area, especially filthy areas. This kind product’s anti-bending intensity is high and its performance in anti-pollution, anti-quake, anti-impulse, anti-rupture is excellent. Besides, its volume is small, weight is light, and ...