|
| Commodity | 2005 | 2007 | 2009 | 2010 | 2011 |
| Permanent magnets & arts. intended to become permanent magnets after magnet ... | $65 | | | $19 | |
| Permanent magnets & arts. intended to become permanent magnets after magnet ... | $156 | | $4,131 | $14 | |
| Electro-magnetic couplings, clutches & brakes | | $3,050 | $144 | | |
| Electro-magnets n.e.s. in 85.05; electro-magnetic/permanent magnet chucks, ... | $1,109 | | $2,345 | $15,601 | $7,049 |
| Total | $1,330 | $3,050 | $6,620 | $15,634 | $7,049 |
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