Hauv chaw ntau pob, auditoriums, thiab ntau- lub hom phiaj chav tsev, xaiv qhov rooj zaum loj cuam tshuam ncaj qha rau kev siv qhov chaw, hloov tau yooj yim, thiab kev paub ntawm cov neeg tuaj saib. Lub rooj zaum ruaj thiab retractable grandstand zaum yog ob hom loj. Txawm hais tias ob qho tib si yog lub rooj zaum loj thiab lawv txoj haujlwm tseem ceeb yog los muab lub rooj zaum rau cov neeg saib, lawv sib txawv hauv cov qauv tsim, kev teeb tsa, kev siv cov xwm txheej, thiab cov yam ntxwv ua haujlwm. Yog li ntawd, kev sib txawv meej raws li qhov chaw qhov kev xav tau tshwj xeeb yog qhov tseem ceeb thaum xaiv ib hom rooj zaum.
Qhov tseem ceeb sib txawv ntawm ob yog nyob rau hauv lawv cov qauv tsim thiab installation txoj kev. Cov rooj zaum ruaj khov siv ib qho kev sib xyaw ua ke, cov qauv ruaj khov, yuav tsum tau ua kom lub rooj zaum ruaj khov rau lub hauv paus loj (pob zeb lossis steel qauv) thaum lub sijhawm teeb tsa. Thaum ntsia, lawv tsis tuaj yeem txav mus los, txuas ntxiv, lossis disassembled; lub rooj zaum txoj hauj lwm, kab sib nrug, thiab cov ntu ntu yog tag nrho ruaj khov, ua rau lawv ua haujlwm ruaj khov. Lawv cov qauv tsim muaj qhov tseem ceeb rau kev ruaj ntseg, nrog cov ncej feem ntau ua los ntawm siab - lub zog steel. Lub rooj zaum lub cev thiab ncej yog nruj nreem txuas, ua rau muaj zog tag nrho cov load-cov kabmob muaj peev xwm, haum rau kev siv sijhawm ntev -. Retractable grandstand rooj zaum, ntawm qhov tod tes, siv lub foldable, extendable modular qauv, muaj xws li lub rooj zaum modules, extendable thav ntawv, thiab kev taw qhia mechanisms. Lawv tsis tas yuav txhim kho hauv av mus tas li thiab tuaj yeem hloov kho tau yooj yim, txuas ntxiv, thiab ntim raws li kev xav tau. Kev txhim kho tsuas yog yuav tsum muaj kev taw qhia lub hauv paus thiab kho kom zoo kom zoo txuas ntxiv thiab thim rov qab yam tsis muaj kev hloov pauv. Thaum tsis siv, lawv tuaj yeem thim rov qab thiab muab tais kom txuag tau qhov chaw, ua rau lawv hloov tau yooj yim, ib nrab{11}} qhov chaw mus tas li. Lawv cov qauv tsim muaj qhov tseem ceeb ntawm kev hloov pauv, nrog rau cov ncej siv cov hinges txav tau thiab cov ntsia hlau, ntsuas qhov ruaj khov thiab ua haujlwm tau zoo.
Qhov thib ob, muaj qhov sib txawv tseem ceeb hauv kev siv qhov chaw thiab hloov tau yooj yim. Lub rooj zaum ruaj khov occupies sawv qhov chaw mus tas li vim nws qhov ruaj khov. Txawm hais tias muaj ib qho kev tshwm sim, cov rooj zaum tsis tuaj yeem txav mus, ua rau muaj qhov chaw siv tsawg. Qhov no ua rau nws tsim nyog rau cov chaw uas muaj cov neeg tuaj saib ruaj khov thiab ib lub hom phiaj, xws li cov chaw ua yeeb yam thiab cov chaw ua yeeb yam nrog cov rooj zaum ruaj khov. Retractable zaum, ntawm qhov tod tes, zoo kawg nkaus daws qhov teeb meem ntawm qhov chaw khib nyiab. Nws nthuav tawm thaum siv, muab qhov chaw txaus; Thaum tsis siv, nws thim rov qab thiab folds, tso tawm qhov chaw sawv ntsug rau ntau yam dej num xws li kev nthuav qhia, kev ua yeeb yam, thiab kev cob qhia. Qhov no tso cai rau ntau- rov siv dua ntawm qhov chaw thiab tsim nyog rau ntau- lub hom phiaj chav tsev, me me thiab nruab nrab- chaw ntau pob, tsev kawm auditoriums, thiab lwm qhov chaw uas yuav tsum tau hloov kho qhov chaw yooj yim.
Kuj tseem muaj qhov sib txawv tseem ceeb hauv kev thauj khoom -cov kabmob muaj peev xwm thiab kev nyab xeeb. Cov rooj zaum ruaj khov, vim lawv cov qauv ruaj khov thiab kev txhawb nqa ruaj khov, muaj ib qho muaj zog dua - lub rooj zaum thiab tag nrho cov khoom thauj - cov kabmob muaj peev xwm, tuaj yeem txhawb nqa ntau tus neeg saib rau lub sijhawm ntev, thiab tsis tshua muaj kev xoob lossis swaying, ua rau muaj kev nyab xeeb dua. Lawv tsim nyog rau qhov siab -cov neeg saib xyuas qhov xwm txheej xws li cov xwm txheej loj - nplai thiab kev sib sau. Retractable grandstand rooj zaum, vim lawv cov qauv txav tau, muaj qhov qis dua me ntsis -cov kabmob muaj peev xwm dua li cov rooj zaum ruaj khov, ua rau lawv tsim nyog rau qis - mus rau nruab nrab-cov neeg saib pom cov xwm txheej ceev. Tus naj npawb ntawm cov neeg uas lawv tuaj yeem nyob tau yuav tsum tau tswj nruj me ntsis thaum siv.