Hluav taws kub-Rated steel qhov rooj ua lub luag haujlwm tseem ceeb hauv kev ua kom tib neeg muaj kev nyab xeeb thiab txo cov khoom puas tsuaj thaum muaj hluav taws. Lub qhov rooj hluav taws uas muaj npe tswj kev sib kis ntawm hluav taws thiab cov pa taws ntev txog 3 teev. Hlau qhov rooj hluav taws yog ib qho kev lag luam rau cov qhov rooj hluav taws, thaum xav tau ntau tshaj li 20 feeb. Hlau yog cov khoom siv lub qhov rooj kom xa hluav taws 3 teev - ntsuas.
Trudoor yog ib qhotso cai WHI hluav taws-labeled khw(Warnock Hersey / Intertek), ua rau peb hloov kho, rov- ntawv pov thawj thiab daim ntawv lo hluav taws- ntsuas qhov rooj thiab thav duab. Thiab, peb yogtau ntawv pov thawj los ntawm ULtxiav, rov- ntawv pov thawj thiab daim ntawv lo hluav taws- cov khoom siv glazing. Peb lub chaw muaj kev tshuaj xyuas niaj hnub los xyuas kom meej tias cov kev hloov kho tau ua tiav raws li cov cai ntawm Intertek thiab UL cov npe tshwj xeeb. Tag nrho cov khoom raug kuaj raws liNFPA cov cai thiab cov qauv.
thov nkag mus rau hauv kev sib cuag nrog tus neeg siv khoom yog xav paub ntxiv txog cov nqi khoom thiab qhov loj me rau
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