Sentinain Inc. 
                                                                 102, Fair Havern Street
                                                                 Apex, NC27539
                                                                 USA
                                                                 www.sentinaininc.com

                                                                 Silver Double Limited
                                                                 Unit 805, (MF2097) 8F, Harbor Crystal Center
                                                                 100 Granville Road, Tsimshatsui East, Kowloon
                                                                 HK
                                                                 www.sidolim.com
                                                                 Email: sale@sidolim.com

            
                                                                 Beijing Sentinain Technology Inc.
                                                                 Rm208, Kequn Plaza Xi
                                                                 Xuyuanlu 30#, Haidian
                                                                 Beijing
                                                                 www.sentinain.com
                                                                 Email: sale@sentinain.com

                                                                 Manufacturing Base:
                                                                 635, Kuangda Road
                                                                 Changchun, Jilin Province
                                                                 China, 130021

                                Whatever you want to enquire or buy, please don't hesitate to contact us:
                                                                Andrew Linken
                                                                Sales Director
                                                                Email: sale@sentinaininc.com

                                Please don't hesitate to contact us if you have any Technical questions:  
                                                                Jack F.
                                                                Technical Director
                                                                Email: tech@sentinaininc.com

                                If you have any after service, please contact us immediately:  
                                                                Dacheng Dang
                                                                Service Support
                                                                Email: service@sentinaininc.com