hairspring

特殊用法balance cock for flat hairspring1.扁平摆夹板游丝Breguer hairspring1.具有末端曲线的游丝, 挑框游丝Elinvar hairspring1.镍铬恒弹性钢游丝flat hairspring1.平游丝right hairspring1.右旋游丝self-compensating hairspring1.自动补偿游丝timed hairspring1.定长游丝timed annular balance with brequet hairspring1.定长游丝光摆轮带双层框游丝(防震装置用)timed breguet hairspring1.定长挑框游丝timing hairspring1.标准游丝unvibrated hairspring1.未定长游丝
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