Lub rooj yog qhov chaw tseem ceeb hauv chaw ua haujlwm. Muaj ntau hom rooj. Cov chaw ua haujlwm nrog cov huab cua sib txawv thiab cov qauv xaiv cov rooj sib txawv, thiab cov ntaub ntawv ntawm cov rooj zaum muaj ntau ntau. Cov yam ntxwv ntawm cov khoom no yog dab tsi?
1. Vaj huam sib luag rooj
Cov ntaub ntawv siv yog ntoo -raws li panels, uas tau muab faib ua ntau hom, xws li triamine board, fiberboard, particleboard, ntiv tes-joint board, thiab lwm yam. Cov yam ntxwv ntawm ntoo-raws li panels yog hais tias lawv yog artificially tiav thiab synthesized, thiab cov ntaub ntawv yog sawdust, veneer, thiab lwm yam., yog li tus nqi qis heev. Ntoo-raws li cov vaj huam sib luag tuaj yeem txiav tau yooj yim dua, yog li lawv tsim nyog rau kev siv ntau yam, ua rau cov duab sib txawv; zoo li triamine panels, koj tuaj yeem hloov cov qauv sab nrauv thiab cov qauv ntawm qhov xav tau. Cov rooj zaum yog tus nqi- siv tau thiab siv dav.
2. Khoom ntoo rooj
Hom rooj no yog ua los ntawm cov khoom ntoo, feem ntau yog walnut, ntoo qhib, thiab lwm yam. Vim yog tus nqi siab ntawm cov cav ntoo, tus nqi ntawm cov ntxhuav ua los ntawm cov khoom ntoo yog siab. Khoom ntoo rooj yog hlub los ntawm ntau tus neeg vim hais tias ntawm lawv cov classic thawj tsw, exquisite tsos, ntsuab thiab ib puag ncig tiv thaiv tsis muaj kuab paug, tab sis tus nqi yog tiag tiag tsis pheej yig. Tam sim no kev siv cov rooj tog ntoo ntoo kuj yog lub cim ntawm cov xwm txheej.
3. Steel rooj
Nws cov khoom feem ntau yog txias -rolled steel. Lub rooj steel tuaj yeem yog txhua yam hlau; nws tuaj yeem ua ke ntawm cov hlau thiab ntoo, uas yog, hauv qab yog hlau thiab lub rooj zaum yog ntoo; kuj tseem muaj ib lub khob iav saum cov ncej steel, tab sis qhov no tsis tshua muaj. Steel decks yog ruaj khov, niaj hnub hauv style, thiab haum rau qee qhov kev lag luam hauv chaw ua haujlwm tshiab. Cov nqi yog nruab nrab, qis, thiab siab.
