Harmonized System Code Classification

9017800000
Classification: 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: Other instruments
Explanation: This HS code refers to drawing, marking-out, or mathematical calculating instruments (e.g., drafting machines, pantographs, protractors, drawing sets, slide rules, disc calculators) and hand-held length-measuring instruments (e.g., measuring rods and tapes, micrometers, calipers) that are not specified or included elsewhere in this chapter, as well as their parts and accessories. These are categorized as "other instruments."

Examples of products under this HS code:
- Slide rules (滑尺)
- Protractors (量角器)
- Drafting sets (绘图套装)
- Disc calculators (圆盘计算器)
- Micrometers (千分尺)
- Calipers (卡尺)
- Measuring tapes (卷尺)
- Parts and accessories for the above instruments (如尺子的替换零件、计算器的附件等)