北京德兰系统控制技术有限公司
Dorland System Control Technology Co., LTD.Booth：W2340

Exhibit Profile：
Intrinsically-Safe-Smartphone，Intrinsically-Safe-Handheld-Terminal-PDA，Intrinsically Safe Laptop And Tablet PC，Intrinsically-Safe-Wearable-Devices，Explosion proof law enforcement instrument