High-pressure dav hlau grouting twj tso kua mis rau underground tej yaam num
Tsis siv neeg siab siab dav hlau grouting twj tso kua mis rau underground tej yaam num ntawm nws tus kheej tsim, tsim, thiab tsim los ntawm peb lub tuam txhab raws li nyob rau hauv ntau xyoo ntawm kev paub yog tsuas yog siv los tsim cov cement slurry, uas yog tsim rau underground anti-seepage phab ntsa siv thiab hauv av, xws li raws li txoj kev, railways, hydropower, kev tsim kho, mining, thiab lwm yam.