Ningbo Tianan (Group) Co., Ltd. is the state large-scale enterprise, one of the key state-level hi-new technology enterprises and the key enterprise in the China power transmission and distribution industry. Tianan products includes mobile substation, 220kV GIS, 110kVSF6 Circuit breaker, oil-immersed transformers, outdoor HV disconnector bellow 220kV, pad mounted substation bellow 35kV, ring main unit switchgear, mid-mount AC switchgear, fixed switchgear, LV Switchgear, frequency conversion switchgear, HV load switch, HV&LV circuit breaker, cable (RMU) branch box, fuse, current transformer (CT), intelligent electric equipments, dry-type & oil imme It was proved that Tianan products owned excellent performance after supporting ShenZhou�?�¢?�?�¤, �?�¢?�?�¥ Manned Spaceship to launch successfully and escorting Qinzang railway. We are dedicated to service customer from all over the world with competitive price and superior quality products. We are eager to expect your cooperation with us in the near ***** transformers, etc.