Our company was established in 2005, noce called Shenzhen L&D Co,. Ltd . which product professional Mental detectors ,eas system . After 8 years development, our technology of mental detectors is meeting the international high level and we have got a number of national patent. We have more than 3,000 square meters of research and production base and 1,000 square meters workshop in national new and high-tech development district in Shenzhen