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| Roya | info@optostar.com.cn |  ouyangroya |
Felix | sales3@optostar.com.cn | optostar3 |
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| Tiffany | sales4@optostar.com.cn | optostar2
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Delia | sales5@optostar.com.cn | optostar66 |
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| Fanny | sales6@optostar.com.cn | optostar11 |
Vicky | sales8@optostar.com.cn | sales6star |
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| Sale-after Service | |||||||
| Nick | technician@optostar.com.cn | live:technician_119 |
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