Profile: Electrical Corporation India specializes in electrical products and accessories. Copper bonded earth rods are made from low carbon steel of grade BS 970 or AISI 1018 with a tensile strength of at least 600 N/mm2 . Low carbon steel core are molecularly bonded with pure electrolytic copper to a thickness of 250 microns. Dark flexible conduit system has a crush & pull of characteristic, making it ideal for flexing, bending & vibrating application.