Cov haujlwm tseem ceeb nyob rau hauv lub qhov kev siv:
Txau Qhob
Daj npuaj teg yog thov ncaj qha rau lub qhov dav phab ntsa thiab ru tsev.
Lub tshuab muabCov Kev Pab Cuam Uniformnrogsiab adhesion, txawm nyob ntawm qhov chaw tsis sib xws.
Qhov Kev Txhawb
Tsim aTiv thaiv cov pob zeb tiv thaivuas stabilizes nyob ib puag ncig pob zeb.
Feem ntau siv raws li covThawj txheej ntawm kev txhawb nqaTom qab khawb (thawj hauv ob kab ntawv).
Ua haujlwm ua ke nrog pob zeb bolts, hlau mesh, thiab steel tav rau ntxiv kev txhawb nqa.
Cov ntsiab lus tseem ceeb:
Siab efficiency: Tso tawm txog li 50 m³ / h kom nrawm txau.
Plua Plav Tswj: Tsawg dua rov qab thiab hmoov av piv rau cov npuaj npuaj qhuav.
Zoo ib yam zoo: Cov dej muaj tseeb - kev sib piv ua kom muaj zog zoo dua lub zog.
Cov chaw taws teeb tswj(Hauv cov hom neeg loj): Muaj kev nyab xeeb thiab ua kom tawg rau hauv qhov nyuaj {{0} - mus txog thaj chaw.
Cov Kev Siv Raug:
Txoj kev thiab railway tunnels
Dej Dauv Kev Lom Zem
Metro thiab Utility Tunnels
Cov chaw nres tsheb hauv dej kas cees
Koj puas xav tau cov lus piav qhia luv luv, cov lus qhia tshwj xeeb rau cov ntawv foos, lossis cov qauv ua piv txwv li cas?
