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6. Contact - Topscom Electronics Co. Ltd Mobile:+86 13502814037,Email: sales@topscom.com.cn, Web- www.topscompcbassembly.comsales@topscom.com.cnwww.topscompcbassembly.com Mobile:+86 13502814037,Email: sales@topscom.com.cn, Web- www.topscompcbassembly.comsales@topscom.com.cnwww.topscompcbassembly.com Tel: +86-755-22211988 (50 Line) Fax:+86-755-83768890 Email: sales@topscom.com.cn Mobile contact :+86 13502814037sales@topscom.com.cn Post address: Topscom Building,No.15 Building, SongZiLing Industrial Park, Liantang Industrial City, Shang Village, Gongming, Guangming New District, Shenzhen City, China.