| 6914.10.40 | 00 | Ceramic ferrules of porcelain or china, not exceeding 3 mm in diameter or 25 mm in length, having a fiber channel opening and/or ceramic mating sleeves of alumina or zirconia | X | Free | | 60% |
| 6914.90.41 | 00 | Ceramic ferrules of alumina or zirconia, not exceeding 3 mm in diameter or 25 mm in length, having a fiber channel opening and/or ceramic mating sleeves of alumina or zirconia | X | Free | | 45% |
| 9017 | | Drawing, marking-out or mathematical calculating instruments (for example, drafting machines, pantographs, protractors, drawing sets, slide rules, disc calculators); instruments for measuring length, for use in the hand (for example, measuring rods and tapes, micrometers, calipers), not specified or included elsewhere in this chapter; parts and accessories thereof: | | | | |
| 9017.20.40 | 00 | Disc calculators, slide rules and other mathematical calculating instruments | X | 3.9% | Free (A,AU,BH,CA, CL,E,IL,J,JO, MA,MX,P,SG) | 40% |
| 9817.00.60 | 00 | Parts to be used in articles provided for in headings 8432, 8433, 8434 and 8436, whether or not such parts are principally used as parts of such articles and whether or not covered by a specific provision within the meaning of additional U.S. rule of interpretation 1(c) | X | Free | | The rate applicable in the absence of this heading |
