https://katalog.gira.de/en-INT/datenblatt/040526
Gira Equipotential bonding socket, 2-gang System 55
equipotential bondinggirasocketgangsystem
https://products.lappgroup.com/online-catalogue/power-and-control-cables/special-applications/special-single-cores/copper-rope-class-5.html
Copper rope, tinned, fine-wired, for equipotential bonding systems
Copper rope - fine-wired tinned copper conductor for the construction of meshed equipotential bonding systems
equipotential bondingcopperropetinnedfine