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,Metal Detector,security door and so on security products. 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...View More