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| Commodity | 2005 | 2006 | 2007 |
| Furnaces & ovens for the roasting/melting/oth. heat-treatment of ores/pyrit ... | $897,978 | $220,821 | $520,577 |
| Bakery ovens, incl. biscuit ovens, non-elec. | $501 | $3,623 | $21,697 |
| Industrial/laboratory furnaces & ovens (excl. of 8147.10 & 8417.20), incl. ... | $757,683 | $1,365,622 | $470,382 |
| Parts of the industrial/laboratory furnaces & ovens of 8417.10-8417.80 | $753,798 | $438,376 | $147,918 |
| Total | $2,409,960 | $2,028,442 | $1,160,574 |
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