Shenzhen Winbest Electronics Co Ltd - safety protection products, gas detector, smoke detector, infrared detector, exit control lock, electric bolt, electromagnetic lock, power supplies for access control, hotel energy saving switches
深圳市莹德嘉电子有限公司-安防系统、门禁系统及酒店系统产品，门禁机控制系统、门禁读卡器、门禁考勤专用电源、消防通道锁、电子锁、电磁锁、酒店门锁、酒店系列节能开关
Using the ultrasonic wave detector to probe the flexible range of the extraction tunnel, grasping the rule of deformed tunnel directs the supporting design of the tunnel bolt.
利用超声波探测仪探测回采巷道的松动范围，掌握巷道的变形破坏规律，以此指导巷道的锚杆支护设计。
Application of Ultrasonic Detector to Testing and Measuring the Axial Force of Bolt in the Operation of Tightening the High Strength Bolt
超声螺栓轴力测试仪在螺栓施拧检验中的应用
The paper adopts the embedded construction and related new technologies to design a portable intrinsically safe non-destructive bolt detector for underground coal mine.
采用嵌入式系统架构和相关新技术，设计了用于煤矿井下的本质安全型、便携式、无损锚杆检测仪。