Qab nthab qab nthab yog siv hauv airports, noj, chaw ua haujlwm vaj tse, khw malls, cov chaw nres tsheb thiab cov tsev nyob. Muaj gypsum board, ntxhua pob zeb lub rooj tsavxwm, PVC, aluminium gusset thiab lub qab nthab muag ntawm lub khw.
Thawj tiam ntawm cov khoom yog gypsum board thiab pob zeb hauv av ntaub plaub.
Qhov thib ob tiam yog PVC.
Qhov thib peb tiam ntawm cov khoom yog hlau ceilings.
Lub sijhawm plaub yog ib qho uas tswj yus tus kheej.
Gypsum board thiab ntxhuav pob zeb lub rooj tsavxwm kuj tseem niaj hnub txhim kho, nrog cov dej tsis muaj kev tsis sib haum nrog gypsum thiab suab-absorbing pob zeb hauv tsev ntxhua khaub ncaws. Txawm li cas los xij, lawv muaj ib cov phaj tib thiab tsis yooj yim rau txhuam. Lawv raug ntsia rau txoj kab ntawv qhib dav hlau thiab siv rau engineering. PVC cov khoom nyob rau hauv oxidation tsis ua hauj, tsis-noo noo, non-fireproof, yooj yim deform, thiab discolored. Lawv feem ntau siv rau hauv kev txhim kho tsev qub qub. Nrog rau kev txhim kho cov neeg zoo raws li kev kho kom zoo nkauj, lub tsev kho kom zoo nkauj tau siv cov txhuas txhuas siv los ua cov thaiv.