Copper bonded earth rods is in conformity with the standard:

BS EN 50164-2,BS7430 and UL467 earth rods to BS EN 50164-2,BS-EN 50164-2,BS 7430 and UL467,Fittings to BS EN 50164-1.
Socome copper bond earth rods probably offer to the installer the best and most economical earth rods available.they are made by molecularly bonding 99.9% pure electrolytic copper on to a low carbon steel core.