发明名称 TRENCHLESS TECHNOLOGY WITH SELECTIVE FLANGE USE LAY UNDERGROUND WATER PIPE SUPPLY AND DRAINAGE
摘要 An underground water supply and drain pipes of non-excavation device is provided to make the separation of inversion in hardening by combining an apparatus which cuts off water of air leakage with a separable flange of inverter. An underground water supply and drain pipes of non-excavation device is connected to a reverse tank(10) which reels an impregnated reinforcement tube with a pressurize device and comprises a first outflow device of which a space is formed in inside, a separable flange which is fixed to one end of the first outflow device, and of which a space is formed in inside, and a second outflow device which is connected to the other one end of the separable flange, and of which a space is equipped in inside.
申请公布号 KR20090041835(A) 申请公布日期 2009.04.29
申请号 KR20070107538 申请日期 2007.10.25
申请人 KOREA LITECH CO., LTD.;GS ENGINEERING & CONSTRUCTION CORP. 发明人 KANG, SEONG JAE
分类号 E03F7/00;F16L55/16 主分类号 E03F7/00
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