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Section XVI — Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles

Chapter 84 — Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

Heading 8431 — Parts suitable for use solely or principally with the machinery of headings 84.25 to 84.30.

National subdivision 8431.4 — Of machinery of heading 84.26, 84.29 or 84.30:

Subheading

8431.43 Parts for boring or sinking machinery of subheading 8430.41 or 8430.49

Common commodities
Rotary table for oil well drillingKelly bar for earth boring toolDrilling derrick componentPile driver hammer partOil well drill machine rotorEarth boring tool assemblyOil rig drilling equipment partDrilling mast componentBoring machinery bearingDrill string connector

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