... widely used in lead frame material, solar photovoltaic ribbon, transformers, radio frequency cables, copper clad alaluminum, heat exchangers, ... : patented trimming,ensure the edge in right anglephotovoltaic copper belt: 100%conductivity ,45 hvcopper cladding aluminum: ... : patented trimming,ensure the edge in right anglephotovoltaic copper belt: 100%conductivity ,45 hvcopper cladding aluminum: ...