mechanical watch gear
Date:[2014/12/15]
ID:YJX14121502
Tel:0755-83686090
E-mail:skerlin@szyujiaxin.com
QQ:
Alibaba: Wechat:yujiaxin-666
Keywords:Mechanical watch gear|clock gear|watch gear|second wheel|chrono wheel|calendar wheel|micro gear|small modulus gear