Heading 7217
Wire of iron or non-alloy steel
721710
Iron or non-alloy steel; wire, (not plated or coated), whether or not polished
721720
Iron or non-alloy steel; wire, plated or coated with zinc
721730
Iron or non-alloy steel; wire, plated or coated with base metals (other than zinc)
721790
Iron or non-alloy steel; wire, n.e.c. in heading no. 7217