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Yiwu Yingrui Optical 13yr.
Main Products:Astronomical Telescope,Magnifier,Compass
Contacts:陈嘉佳Chat
Mobile:86-13906893397
E-mail: WeChat:Linreoptical
Address:23523 , 2 F, Annex Gate, International Trade Mart (District 3).
注意事项:
1.在水平状态下使用,以尽量确保准确
2.为避免磁针发生错乱,使用时请与铁丝网,以及含有磁性的物体保持一定距离(比如高压线、发电机、音响、磁铁等)
3.不可敲打或者用手拍指南针,以免影响测量精度
4.保持外壳和镜面光洁,不要用脏布、手去擦拭
5.不用时应收起放入盒内,放置不要靠近铁磁性物质,以免损耗磁性
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