Elinvar hairspring
镍铬恒弹性钢游丝
hairspring set lever.
游丝调整杆
unvibrated hairspring.
未定长游丝
hairspring collet tool
游丝内桩工具
timed breguet hairspring
定长挑框游丝
Breguet hairspring stud.
挑框游丝外桩
Breguet hairspring collet.
挑框游丝内桩
hairspring collet removers
游丝内桩拆除器
balance cock for flat hairspring
扁平摆夹板游丝
The hairspring flies softly on pavilion.
游丝软细飘春榭
timed annular balance with brequet hairspring
定长游丝光摆轮带双层框游丝
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