发明名称 POLLUTION PREVENTION EQUIPMENT OF UNDERGROUND WATER
摘要 The water vein is found to be measured, wherein the pipe(2) is inserted from the stratum hole(1). Likewise, the pipe is exactly inserted, rotating the pipe clockwise, the contact hole(5) of the stratum wall is completely fixed on the stratum wall. Further four pipes(7) for pouring cement mortar are respectively introduced in four parts around the circular guide panel(6), and cement mortar is completely poured, having a pipe(2) moved upward.
申请公布号 KR970001844(B1) 申请公布日期 1997.02.17
申请号 KR19940023268 申请日期 1994.09.14
申请人 CHO, DUK-SANG 发明人 CHO, DUK-SANG
分类号 E21B33/10;(IPC1-7):E21B33/10 主分类号 E21B33/10
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