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| Commodity | 2005 | 2006 | 2007 | 2008 |
| Industrial/laboratory elec. furnaces & ovens, resistance heated furnaces & ... | $13,539 | $3,763 | $31 | $34 |
| Industrial/laboratory elec. furnaces & ovens functioning by induction/diele ... | $4,285 | $806 | | $3,243 |
| Industrial/laboratory elec. furnaces & ovens, n.e.s. in 85.14 | $14,384 | $6,154 | $2,226 | $2,546 |
| Equipment for the heat treatment of mats. by induction/dielectric loss, n.e ... | $223 | $199 | $3,031 | |
| Parts of the equip. of 85.14 | $526 | $184 | $3,685 | $1,576 |
| Total | $32,957 | $11,106 | $8,973 | $7,399 |
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