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.

(1) surge arrestors- metal oxide surge arrester, Polymer housed surge arrester, Porcelain housed surge arresters, lightning arresters. (2) varisors- zinc oxide varistor, metal oxide varisors. (3) composite insulators- suspension composite insulator, line post insulators. (4) fuse cutouts- expulsion fuse cutout, Polymer housed fuse cutouts, drop-out fuse. (5) disconnecting switches.