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| Commodity | 2005 | 2006 | 2007 | 2008 |
| Pressure-reducing valves for pipes/boiler shells/tanks/vats or the like | | $519 | | |
| Check (nonreturn) valves for pipes/boiler shells/tanks/vats or the like | $1,291 | $349 | | |
| Safety/relief valves for pipes/boiler shells/tanks/vats or the like | | $2,907 | | $527 |
| Taps, cocks, valves & sim. appls. for pipes/boiler shells/tanks/vats or the ... | $2,661 | | $4,863 | $747 |
| Total | $3,952 | $3,775 | $4,863 | $1,274 |
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