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Casement qhov rai

Cov lus piav qhia luv luv:

Qhov zoo yog qhov chaw qhib loj, zoo qhov cua, zoo khi, suab rwb thaiv tsev, tiv thaiv tshav kub thiab zoo impermeability. Lub qhov rai tu yog yooj yim nrog lub qhov qhib sab hauv; lub qhov rai qhib tsis nyob ntawm qhov chaw thaum qhib qhib. Qhov tsis zoo yog tias lub qhov rais me me thiab qhov pom tsis qhib. Qhov qhib ntawm lub qhov rai sab nraud yuav tsum nyob ntawm qhov chaw sab nraud ntawm phab ntsa, uas yog qhov yooj yim yuav puas thaum cua tshuab; thaum lub qhov rais sab hauv yog los nyob ntawm ib feem ntawm qhov chaw sab hauv, thiab nws tsis yooj yim los siv lub qhov rai npo. Thaum qhib lub qhov rai, nws tsis yog yooj yim siv lub vias vias lub vijtsam thiab ntaub thaiv, xws li qhov tsis zoo tsis kaw, thiab nws kuj tseem tuaj yeem pom dej nag.


Khoom Nthuav dav

Cov khoom lag luam

Hom tau tsam:

Nws muaj ntau daim ntawv qhib, nyiam thiab ruaj khov. Nws yog qhov tsim nyog rau pej xeem cov vaj tse, thaj chaw hauv nroog thiab hauv nroog engineering; cov cuab yeej ua tau zoo kho vaj huam sib luag yog ruaj khov, kev siv ua haujlwm tau zoo nkauj thiab xis, thiab nws yooj yim thiab hloov tau qhib. Txhua qhov kev siv ua tau raug ntsuas, thiab lub sijhawm kuaj qaug zog muaj ntau dua li kaum tawm txhiab tus, thiab cov zawv zawg yog qhov yooj yim thiab nws tus kheej xws li, ntsiag to, paub tab thiab zoo meej lub qhov rooj thiab lub qhov rooj thev naus laus zis, high-precision program tswj kev ua haujlwm rau ntau lawm, ruaj khov zoo.


  • Yav dhau los:
  • Tom ntej:

  • Sau koj cov lus ntawm no thiab xa rau peb