Cov hauv qab no yog cov lus qhia ntxaws ntxaws txog qhov zoo ntawm cov ntawv hlau galvanized: 1. Cov tsos yog ci thiab huv si, thiab qhov tsim nyog layout muaj ib daim phiaj tshwj xeeb.2. Lub installation yog tus nqi qis, thiab cov nyiaj siv ua haujlwm galvanized hlau yog qhwv ib ncig ntawm cov yeeb nkab rwb thaiv tsev, uas yog muag ncaj qha los ntawm cov chaw tsim khoom, nrog rau qhov chaw me me thiab ob peb lub pob;3. Zoo compressive zog thiab nruj;4. Cov phab ntsa tuab tuaj yeem xaiv tau ntau yam;5. Muaj zog corrosion kuj, haum rau txhua yam muaj zog alkali, alkali pos huab thiab lwm yam muaj zog corrosive ib puag ncig;6. Cov lus qhia tshwj xeeb thiab cov qauv tuaj yeem hloov kho raws li cov neeg siv khoom cov cai thiab cov qauv tsim kev tshaj lij;7. Kev tiv thaiv ultraviolet lub teeb, lub sijhawm thov ntawm sab nraum zoov khoob txee yog li 15 xyoo, thiab nws tuaj yeem ncav cuag 30 xyoo hauv chav;8. Cov txheej txheem ntawm cov khoom lag luam tus qauv yog siab, thiab tag nrho cov khoom sib xyaw ua qauv, uas txuag cov ntaub ntawv raw, yog qhov tsim nyog rau kev khaws cia thiab txo lub sijhawm xa khoom;9. Kev ua haujlwm ntawm cov pa cua tau txais cov qauv txuas txuas txuas ntxiv, uas muaj qhov zoo ntawm kev nruj zoo, ruaj khov thiab tsis xeb.