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| Commodity | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of non-malleable ... | $30,130,000 | $41,037,000 | $46,317,000 | $52,692,000 | $44,784,000 | $57,339,965 | $56,140,808 |
| Cast tube/pipe fittings (e.g., couplings, elbows, sleeves) of iron (excl. n ... | $78,253,000 | $91,822,000 | $103,589,000 | $123,839,000 | $97,232,000 | $110,759,667 | $163,874,223 |
| Flanges of stainless steel | $66,500,000 | $83,478,000 | $134,875,000 | $141,702,000 | $82,253,000 | $102,507,110 | $158,870,417 |
| Threaded elbows, bends & sleeves of stainless steel | $29,275,000 | $37,661,000 | $46,722,000 | $61,144,000 | $42,961,000 | $57,691,053 | $82,096,049 |
| Butt welding fittings of stainless steel | $59,422,000 | $77,156,000 | $102,146,000 | $118,980,000 | $73,529,000 | $63,654,250 | $94,586,706 |
| Tube/pipe fittings of stainless steel (excl. of 7307.21-7307.23) | $97,213,000 | $111,331,000 | $143,050,000 | $152,280,000 | $121,160,000 | $152,637,184 | $187,620,350 |
| Flanges of iron/steel (excl. of cast iron/stainless steel) | $80,144,000 | $110,093,000 | $154,105,000 | $218,705,000 | $119,985,000 | $120,492,092 | $170,538,963 |
| Threaded elbows, bends & sleeves of iron/steel (excl. of cast iron/stainles ... | $38,696,000 | $43,297,000 | $51,351,000 | $34,765,000 | $26,299,000 | $28,394,411 | $36,253,883 |
| Butt welding fittings of iron/steel (excl. of cast iron/stainless steel) | $36,988,000 | $42,302,000 | $68,340,000 | $92,718,000 | $61,417,000 | $56,143,616 | $70,085,742 |
| Tube/pipe fittings of iron/steel (excl. cast iron/stainless steel; excl. of ... | $121,920,000 | $152,668,000 | $186,086,000 | $297,580,000 | $184,480,000 | $193,294,505 | $260,742,858 |
| Total | $638,541,000 | $790,845,000 | $1,036,581,000 | $1,294,405,000 | $854,100,000 | $942,913,853 | $1,280,809,999 |
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