| 1. | Hairsprings for watches and clocks ; code - numbers
钟表的游丝.代码 |
| 2. | Hairsprings for mechanical instruments
机械仪表用游丝 |
| 3. | Hairspring for aviation instruments
航空仪表用游丝 |
| 4. | Balance cock for flat hairspring
扁平摆夹板游丝 |
| 5. | Breguet hairspring collet
挑框游丝内桩 |
| 6. | Breguet hairspring stud
挑框游丝外桩 |
