Shenzhen Hezhong Electronics Technology CO.,LTD is a high-tech security and protection products manufacturer, incorporating with research and development, manufacture, marketing, and maintenance in security products: video door phones,GSM alarm system,metal detector and so on. Shenzhen Hezhong Electronics Technology CO.,LTD specialize in manufacturing of security system products .with well-equipped testing equipment and strong technical force. These products have been exported to North ...   |