| 84 | Reactors nuclear, boilers, equipment and mechanical devices; their parts |
| 8483 | Transmission shafts (including cam and crank shafts) and cranks; bearing housings and sliding bearing shafts gears and gearing; ball or roller screws; gear boxes and other speed changers, including gidrot |
| 848340 | Gears, except gear wheels, chain sprockets and other individual supplied transmission components; ball or roller transmission screws; transmission and dr. var. coming soon ... |
| 84834030 | Ball or roller screws |