Protective doorSpecialized safety protection facilities for specific risksVentilation / windproof core differs from that of ventilation doors and sealed doors, it is designed withWithstand impact, isolate hazardous mediums, protect personnel/equipment/essential areasAt the core, it addresses high-risk local scenarios underground.Specialized Protective BarrierAdaptable to sudden risks such as blasting, ground pressure, water inrush, roof caving, and gas explosions, primarily installed in key locations such as underground chambers, entranceways, and near work areas.Combines protection and scenario adaptabilityThe core function revolves aroundImpact-resistant, medium-separating, vital-protection, evacuation-assuringUnfurl, while also designed to fit the complex underground operation environment, with distinct exclusive features, specifically categorizedCore protective functionAndExclusive design featuresTwo parts, with clear delineation of their functional boundaries from the ventilation door and sealed door.