Pure copper sheet， high purity， fine organization， the oxygen content is very low.Nonporous， trachoma， loose， conducting performance is excellent，Electric high erosion of the mold surface accuracy， the heat treatment process， the electrode had no direction.Suitable for playing fine， fine playing， good thermal channel， workability， ductility， corrosion resistance and weather resistance. Good electrical conductivity， thermal conductivity， corrosion resistance and workability， welding and brazing Material: CopperSize: 0.1x200x500mm (H x W x L)Copper purity: 99.9%Thickness: 0.1 mmDue to unavoidable objective reasons， its surface may be with a little oil ， but do not affect its functions.Package included:1 x copper sheet