蓄電池電機車巷道防火門

、主要作用：防火門是井下防火設施，當井下 旦發生火災，立即關閉，防止火苗蔓延。

二、主要規格型號：

序號                                圖 號                                     規 格 型 號

01                                B85-372.3                               MFHX-2.0X2.45

02                                B85-372.4                              MFHX-2.2X2.45

03                                B85-372.5                              MFHX-2.4X2.45

04                                B85-372.6                              MFHX-2.8X2.45

05                                B85-372.7                              MFHX-3.2X2.45

06                                B85-372.8                              MFHX-3.8X2.45

07                                B85-372.9                              MFHX-4.2X2.45

08                                B85-372.10                            MFHX-4.4X2.45

09                                 B85-372.11                           MFHX-5.0X2.45