- Jinan Huake Electrical Device Co., Ltd.
- Main products: underground mining electrical equipment
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- Mine-used intrinsic safety two-way emergency stop lock switch
- Coal mine personnel positioning system
- Coal mine personnel positioning system
- KDW127-18B Intrinsic safety explosion proof power supply
- KBA12Q intrinsic safety explosion proof network camera
- KBA18(C) intrinsic safety explosion proof camera
