HSN Code 7410 refers to "Copper foil 'whether or not printed or backed with paper, paperboard, plastics or similar backing materials', of a thickness 'excluding any backing' of = 0,15 mm (excluding stamping foils of heading 3212, metal yarns and metallised yarns and foil made up as christmas tree decorating material)." This classification code is crucial for identifying copper foil products for import/export purposes based on their nature, composition, and intended use. Common products under HSN Code 7410 include printed copper foil, backed copper foil, and unbacked copper foil. Additionally, the GST rate for copper foil under this code supports accurate trade compliance.