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| Commodity | 2005 | 2006 | 2007 | 2008 |
| Pressure-reducing valves for pipes/boiler shells/tanks/vats or the like | $5,978 | $9,410 | $8,696 | $27,729 |
| Valves for oleohydraulic/pneumatic transmissions for pipes/boiler shells/ta ... | $7,871 | $12,997 | $11,507 | $28,388 |
| Check (nonreturn) valves for pipes/boiler shells/tanks/vats or the like | $4,376 | $4,253 | $724 | $9,081 |
| Safety/relief valves for pipes/boiler shells/tanks/vats or the like | $23,348 | $14,850 | $49,567 | $4,952 |
| Taps, cocks, valves & sim. appls. for pipes/boiler shells/tanks/vats or the ... | $61,059 | $43,567 | $101,455 | $286,679 |
| Parts of the appls. of 84.81 | $5,233 | $7,741 | $45,645 | $35,308 |
| Total | $107,865 | $92,818 | $217,594 | $392,137 |
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