Cov yam ntxwv ntawm guardrails feem ntau txhais los ntawm lawv txoj kev nyab xeeb, kev tsim qauv, thiab kev yoog raws.
Lawv muaj kev tiv thaiv kev nyab xeeb. Los ntawm kev tsim ib qho txuas ntxiv lossis ib nrab- thaiv lub cev, cov neeg saib xyuas tau zoo tiv thaiv cov neeg ua haujlwm lossis tsheb los ntawm kev tsis tuaj yeem nkag mus rau thaj chaw muaj kev phom sij, ua haujlwm rau kev nyab xeeb tseem ceeb hauv cov chaw xws li txoj kev, txuas hniav, cov platform siab, thiab cov chaw tsim kho.
Lawv muaj ntau hom qauv tsim thiab kev hloov pauv siab. Nyob ntawm daim ntawv thov ib puag ncig, guardrails tuaj yeem tsim nyob rau hauv ntau hom- xws li hlau, pob zeb, yas, lossis cov tshuab sib xyaw- thiab lawv qhov siab, lub zog, thiab cov tsos tuaj yeem hloov kho kom haum raws li cov kev xav tau ntawm cov haujlwm sib txawv thiab qhov chaw.
Guardrails kuj muaj qhov ua tau ntev thiab kev saib xyuas yooj yim. Cov hlau guardrails, thaum kho nrog galvanization, hmoov txheej, los yog tiv thaiv -corrosion finishes, tuaj yeem tiv taus ntev - siv sab nraum zoov yam tsis yooj yim xeb lossis deteriorating. Tsis tas li ntawd, lawv cov qauv modular tso cai rau kev hloov pauv ntawm ib tus neeg puas seem, ua rau cov nqi kho qis dua.