Commodity200920102011
Unwrought prods. of ref. copper (excl. of 7403.11-7403.13) $47 
Copper-zinc base alloys (brass), unwrought$69$266$63
Copper-tin base alloys (bronze), unwrought  $4,601
Copper alloys (excl. of 7403.21-7403.23; excl. master alloys of 74.05), unw ... $858 
Total$69$1,171$4,664