• facebook
  • linkedin
  • twitter
  • google
  • youtube

cov khoom xov xwm

  • To taub qhov hluav taws kub hnyiab: Cov pa luam yeeb dawb thiab dub sib txawv li cas

    To taub qhov hluav taws kub hnyiab: Cov pa luam yeeb dawb thiab dub sib txawv li cas

    1. Cov pa luam yeeb dawb: Cov yam ntxwv thiab qhov chaw yam ntxwv: Xim: tshwm dawb lossis lub teeb grey. Particle Loj: Cov khoom loj dua (> 1 micron), feem ntau muaj cov dej vapor thiab cov combustion residues. Kub: Cov pa luam yeeb dawb feem ntau yog ass...
    Nyeem ntxiv
  • Dab tsi tshiab hauv UL 217 9th Edition?

    Dab tsi tshiab hauv UL 217 9th Edition?

    1. UL 217 9th Edition yog dab tsi? UL 217 yog lub tebchaws United States tus qauv rau cov pa luam yeeb, siv dav hauv cov tsev nyob thiab cov tsev lag luam kom ntseeg tau tias lub tswb nrov pa taws teb sai sai rau kev phom sij thaum txo cov tswb cuav. Piv rau yav dhau los versions, th ...
    Nyeem ntxiv
  • Wireless Smoke thiab Carbon Monoxide Detector: Cov Lus Qhia Tseem Ceeb

    Wireless Smoke thiab Carbon Monoxide Detector: Cov Lus Qhia Tseem Ceeb

    Vim li cas Koj Thiaj Yuav Tsum Muaj Cov Hluav Taws Xob thiab Carbon Monoxide Ntes? Lub ntsuas pa taws thiab carbon monoxide (CO) yog qhov tseem ceeb rau txhua lub tsev. Cov pa taws ceeb toom pab tshawb xyuas hluav taws thaum ntxov, thaum cov pa roj carbon monoxide detectors ceeb toom koj txog qhov muaj cov pa phem, tsis muaj ntxhiab tsw - feem ntau hu ua ...
    Nyeem ntxiv
  • puas ua rau lub tswb nrov?

    puas ua rau lub tswb nrov?

    Cov pa taws ceeb toom yog cov cuab yeej cawm txoj sia uas ceeb toom peb txog kev phom sij ntawm hluav taws, tab sis koj puas tau xav tias qee yam tsis muaj kev phom sij li cov pa tuaj yeem ua rau lawv? Nws yog ib qho teeb meem tshwm sim: koj tawm ntawm da dej kub, lossis tej zaum koj chav ua noj puv nrog chav thaum ua noj, thiab dheev, koj cov pa luam yeeb ...
    Nyeem ntxiv
  • Yuav ua li cas yog tias koj lub tshuab ntsuas pa roj carbon monoxide ploj mus: Phau Ntawv Qhia ib kauj ruam dhau-kauj ruam

    Yuav ua li cas yog tias koj lub tshuab ntsuas pa roj carbon monoxide ploj mus: Phau Ntawv Qhia ib kauj ruam dhau-kauj ruam

    Cov pa roj carbon monoxide (CO) yog cov roj tsis muaj xim, tsis muaj ntxhiab tsw uas tuaj yeem ua rau tuag taus. Lub tshuab ntes carbon monoxide yog koj thawj kab ntawm kev tiv thaiv tiv thaiv qhov kev hem thawj tsis pom. Tab sis koj yuav tsum ua li cas yog tias koj lub CO detector dheev tawm? Nws tuaj yeem yog lub sijhawm txaus ntshai, tab sis paub txog cov kauj ruam tsim nyog yuav ua rau ...
    Nyeem ntxiv
  • Cov chav pw puas xav tau cov pa roj carbon monoxide ntes sab hauv?

    Cov chav pw puas xav tau cov pa roj carbon monoxide ntes sab hauv?

    Cov pa roj carbon monoxide (CO), feem ntau hu ua "silent killer," yog cov roj tsis muaj xim, tsis muaj ntxhiab tsw uas tuaj yeem ua rau tuag taus thaum nqus tau ntau. Tsim los ntawm cov khoom siv xws li lub tshuab cua sov, qhov cub, thiab cov qhov cub hluav taws kub, cov pa roj carbon monoxide lom tau thov ntau pua tus neeg nyob hauv ib xyoos ...
    Nyeem ntxiv
123456Tom ntej no>>> Nplooj 1 / 26
WhatsApp Online Sib Tham!