Vim nws cov khoom zoo heev, tus nqi qis, thiab kev siv yooj yim, nws tau siv dav. Cov neeg tsim khoom kuj tseem maj mam hloov cov tsoos hnab ntim khoom lag luam.
Raws li cov neeg siv tseem ceeb, cov tuam txhab cement, thiab cov thawv ntim khoom lag luam tau ntev tsis muaj kev sib txuas lus. Hauv kaum xyoo dhau los, kev lag luam ntim ntim ntim tau ua tau zoo, tab sis cov tuam txhab cement tsis tau paub txog qhov no thiab muaj kev tsis ntseeg txog qhov zoo ntawm cov thawv ntim khoom.
Cov nroj tsuag cement siv ntau lub hnab ntim khoom, thiab cov khoom siv hauv cov txheej txheem filling yuav tsum tau hloov kho. Yuav hloov li cas? Tam sim no, cov thawv ntim khoom lag luam tsis muaj txoj hauv kev tsim nyog. Yog li ntawd, qhov no kuj txwv tsis pub siv dav hauv cov thawv ntim khoom.
Cov khoom hloov ntawm lub hnab zoo tib yam. Lub hnab ntim khoom tsuas yog hloov me me xwb, tsis yog txhua qhov hloov pauv. Txawm li cas los xij, lub hnab ntim khoom nyob hauv txoj haujlwm loj hauv kev tsim kho vaj tse loj thiab kev thauj mus los ntev.
Lub peev xwm ntawm lub hnab tuj yog qhov loj heev. Nws yog tsim los ntawm polypropylene thiab polyethylene ua raw khoom thiab woven nrog polyester fiber. Nws yog lub teeb hauv qhov hnyav thiab muag heev. Nws tseem yog foldable thiab muaj qhov chaw cia me me.
Vim tias tus nqi qis ntawm lub hnab ntim khoom, kev thauj mus los, kev lag luam, thiab lwm yam lag luam yuav xaiv cov hnab ntim khoom thib ob rau kev ntim khoom. Lub hnab ntim khoom muaj ntau yam ntim thiab tuaj yeem siv los ntim cov ntaub ntawv granular, cov ntaub ntawv grey, thiab lwm yam, thiab lawv yooj yim rau kev thauj khoom, tshem tawm, thiab thauj, txuag sijhawm thiab siv zog.
Thaum muas lub hnab ntim, lawv tuaj yeem ua raws li qhov xav tau; Raws li cov duab, lawv tuaj yeem muab faib ua square thiab puag ncig; Nyob rau hauv cov nqe lus ntawm kev siv, muaj ob hom: pov tseg thiab ntau reuse.
