密閉門:本(ben)密閉門結(jie)合面采用(yong)(yong)高強度彈性密封(feng)條密封(feng),緊(jin)急關(guan)閉采用(yong)(yong)契鐵式拉(la)緊(jin)裝置,具有(you)密閉效果好、關(guan)閉速度快、抗(kang)壓強度高德特點。適用(yong)(yong)于井下中(zhong)央配電室(shi)與(yu)主水(shui)泵房等(deng)具有(you)防水(shui)要求(qiu)的峒室(shi)。