人防(fang)(fang)門(men),密(mi)閉門(men),人防(fang)(fang)封堵,戰時通風工(gong)程(cheng)(cheng),人防(fang)(fang)工(gong)程(cheng)(cheng)的(de)維(wei)護保養。
生產加工
人(ren)防(fang)門,密閉門,人(ren)防(fang)封堵,戰時通風工(gong)程(cheng),人(ren)防(fang)工(gong)程(cheng)的維護保養(yang)。
生產加工
人防(fang)門,密閉門,人防(fang)封堵,戰時通風(feng)工(gong)程(cheng),人防(fang)工(gong)程(cheng)的維護保(bao)養。
生產加工
人(ren)防(fang)門(men),密(mi)閉(bi)門(men),人(ren)防(fang)封堵,戰時(shi)通風工(gong)程,人(ren)防(fang)工(gong)程的維(wei)護(hu)保養。
生產加工
人(ren)防(fang)門(men),密閉門(men),人(ren)防(fang)封堵,戰時通風工程,人(ren)防(fang)工程的維護(hu)保養。
生產加工
人防門,密(mi)閉門,人防封堵,戰時通(tong)風工(gong)(gong)程(cheng)(cheng),人防工(gong)(gong)程(cheng)(cheng)的(de)維護保養。
生產加工
非開挖(wa)定(ding)向穿越工程(cheng),頂(ding)管施(shi)工,拖管施(shi)工,泥(ni)水平衡盾構施(shi)工
其他
非(fei)開挖定向穿越(yue)工(gong)程,頂管施(shi)工(gong),拖管施(shi)工(gong),泥水平衡(heng)盾構施(shi)工(gong)
其他
非開挖定向(xiang)穿(chuan)越工(gong)(gong)程,頂管施(shi)(shi)工(gong)(gong),拖管施(shi)(shi)工(gong)(gong),泥水平(ping)衡盾構施(shi)(shi)工(gong)(gong)
其他
非開挖定向穿越(yue)工(gong)程,頂管施工(gong),拖(tuo)管施工(gong),泥水(shui)平衡盾構施工(gong)
其他