HS CodesXV · Base metals and articles of base metal74 · Copper and articles thereof7403740322740322Chapter 74Copy pageCopper-tin base alloys (bronze)DescriptionRefined copper and copper alloys, unwrought : Copper alloys : Copper-tin base alloys (bronze)Was this page helpful?YesNoPrevious740321Copper-zinc base alloys (brass)NextOther copper alloys (other than master alloys of heading 7405)740329