鸿运体育手机登陆网站-欢迎下载
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                1-安放孔口管

                1-工作井侧孔口管安放

                1-夯管

                1-砼墙开孔

                1-钻孔成孔

                2-冻结站

                2-冻结站1

                2-冻结站2

                2-管路安装

                3-积极冻结

                3-积极冻结1

                3-积极冻结2

                3-积极冻结3

                3-积极冻结4

                4-开挖-破地墙

                4-开挖-破地墙1

                5-开挖-安防护门

                5-开挖-安防护门1

                鸿运体育手机登陆网站-欢迎下载