Cov tswv yim tseem ceeb ntawm cov tsev ua siv prefabricated yog "lub koom haum loj prefabricated thiab ceev ceev ntawm chaw sib dhos". Nws qhov zoo tshaj plaws yog ceev ceev siv ceev, lub sij hawm luv siv, kev ua haujlwm qis thiab qaug qaug tsis zoo. Piv nrog rau lwm cov qauv ntaub ntawv, steel qauv yog qhov yooj yim kom ua tau zoo ntawm kev tsim qauv, kev tsim kho kev lag luam, kev sib dhos thiab kev ua haujlwm ntawm kev tsim kho, kev sib koom ntawm cov khoom muag, thiab kev ua lag luam ntawm kev ua lag luam. Vim li no, cov txheej txheem steel hlau prefabricated yuav zoo tshaj li cuam tshuam thiab exert cov tub ntxhais zoo ntawm prefabricated vaj tse, nrog rau feem ntau txoj kev loj hlob tej zaum thiab qib nqi.
Ib sab xuab zeb - cov cuab yeej dub rau kev sib sau ua ke hlau (qhov muag tsis pom qhov)
Jul 21, 2018
Tso lus