... copper belt: 100%conductivity ,45 hv 4,copper cladding aluminum: applied in wire 5,electronics: clean surface ... in right anglephotovoltaic copper belt: 100%conductivity ,45 hvcopper cladding aluminum: applied in wireelectron: clean surface,steady tolerance, ... in right anglephotovoltaic copper belt: 100%conductivity ,45 hvcopper cladding aluminum: applied in wireelectron: clean surface,steady tolerance, ...