Hengda is a high technology company specialized in manufacturing the HV electric power transmission & distribution equipments. Our product lines could supply variety of quality electronic components such as surge arrestors, metal oxide surge arrester, metal oxide varisors, zinc oxide varistor, expulsion fuse cutouts, composite insulators, disconnecting switches. All products of Hengda has passed ISO9001 in 2005 and some types of lightning arresters for oversea market have obtained KEMA certification in 2006. 
China