• Refuge chamber can be disassembled according to mine barrier structure can be individually designed, divided into various different types of 30-100 people.

    拆解避难硐室根据煤矿不通结构单独设计而,分为30- 100各种不同型号

    youdao

  • Refuge chamber can be disassembled according to mine barrier structure can be individually designed, divided into various different types of 30-100 people.

    拆解避难硐室根据煤矿不通结构单独设计而,分为30- 100各种不同型号

    youdao

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