Total index B50001 Crude processing (capacity) B5610C Primary & semifinished processing (capacity) B562A3C Finished processing (capacity) B5640C Manufacturing ("SIC") B00004 Manufacturing (NAICS) GMF Durable manufacturing (NAICS) GMFD Wood product G321 321 Nonmetallic mineral product G327 327 Primary metal G331 331 Iron and steel products G3311A2 3311,2 Fabricated metal product G332 332 Machinery G333 333 #### my $code = "GMF"; print "$code: $description_hash{$code}.\n"; #### GMF: Manufacturing (NAICS).