OPTEK Digital Technology Co., Ltd
Address:Room 207, Block B, Building 7, Shenzhen Bay Science and Technology Ecological Park, Nanshan  Shenzhen                                          Tel: +86  0755  2650  6973
 Fax: +86  0755  2650  5151                      
E-mail:sales@optek.com.cn

 Optek Semiconductor company limited
Address:Unit 1204 Heng Ngai Jewelry Centre 4 Hok Yuen Street East Hung Hom Kowloon Hong Kong
Tel:  +852  3957  7739
Fax: +852  2485  2279

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