24kV-4000A wall bushing operation in Jinhua, Zheji
Thermal mechanical prestress hot and cold cycling
Boiled experiment
anti-seisimic test
1100kV transformer bushing type test in Wuhan
550kVGIS lead-out bushing delivery test
550kV transformer bushing anti-seisimic test
400kV DC wall bushing type test in process
400kV DC wall bushing test sucessfully in national
