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By certification 
Are you looking for high performance high and medium voltage distribution class medium voltage distribution arrester IEC 60099-4 2014 TIANGONG? Tiangong as one of the best metal oxide varistors suppliers, is a reliable China manufacturer offering the test. Welcome to check the size with our factory.
Porcelain housing arrester.
The highest voltage class : 1100 kV
Organic composite arrester.
GIS Arresters
The highest voltage class : 800kV
