| 8404 | | Auxiliary plant for use with boilers of heading 8402 or 8403 (for example, economizers, super-heaters, soot removers, gas recoverers); condensers for steam or other vapor power units; parts thereof: | | | | |
| 8404.10.00 | 10 | Economizers | t | | | |
| 9005 | | Binoculars, monoculars, other optical telescopes, and mountings therefor; other astronomical instruments and mountings therefor, but not including instruments for radio-astronomy; parts and accessories thereof: | | | | |
| 9801.00.20 | 00 | Articles, previously imported, with respect to which the duty was paid upon such previous importation or which were previously free of duty pursuant to the Caribbean Basin Economic Recovery Act or Title V of the Trade Act of 1974, if (1) reimported, without having been advanced in value or improved in condition by any process of manufacture or other means while abroad, after having been exported under lease or similar use agreements, and (2) reimported by or for the account of the person who imported it into, and exported it from, the United States | X | Free | | Free |
