| Address : | 14F, Duocai B Bd, Guanlan Hi-Tech Park, Guanhu, Longhua, Shenzhen, Guangdong, China. P/c : 518110 |
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| Factory Address : | 4F, Yueheng Bd, Dalang, Longhua, Shenzhen, Guangdong, China. P/c: 518111 |
| Work Time : | 8:00-18:00(Beijing time) |
| Phone : | 86--13410896018(Work Time) 86-755-61119991(Nonworking time) |
| Fax : | 86-755-61119991 |
| Email : | david.wk.he@kocentoptec.com |
| Address : | No.1103, HANG SENG MONGKOK BUILDING, 677 NANTHAN ROAD, MONGKOK, KOWLOON HK. |
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| Phone : | 852--26681868 |
| Fax : | 852--26681899 |
| Address : | Machang Industrial Zone, Qing Xian, Cangzhou, Hebei, China. |
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| Address : | No 6A, Lane 235, Nguyen Trai, Thuong Dinh, Thanh Xuan, Ha Noi, Viet Nam. |
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| Phone : | 84-024-22255666 |
| Phone : | 86-13410896018 |
|---|---|
| WhatsApp : | +8613410896018 |
| Skype : | optec168 |
| WeChat : | 86-13424426827 |
| Email : | david.wk.he@kocentoptec.com |
| Phone : | 86-18664578169 |
|---|---|
| WhatsApp : | +8618664578169 |
| Skype : | mary.linh.fiberoptic |
| WeChat : | 86-18664578169 |
| Email : | mary.linh@kocentoptec.com |
