1. Cov tsos zoo nkauj, tsim nyog layout thiab cim style;
2. Tus nqi nruab nrab yog tsawg, thiab cov nyiaj siv ua haujlwm galvanized hlau ntawv lub qhov txhab rwb thaiv tsev yeeb nkab yog muag ncaj qha los ntawm cov chaw tsim khoom, yog li qhov chaw nyob sab hauv tsev me me thiab muaj 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 kev qhia tshwj xeeb thiab cov qauv tuaj yeem ua raws li cov neeg siv khoom xav tau, cov qauv tsim;
7. UV resistant, lub sij hawm daim ntawv thov ntawm sab nraum zoov khoob txee yog hais txog 15 xyoo, thiab nws muaj peev xwm ncav cuag 30 xyoo nyob rau hauv chav tsev;
8. Cov txheej txheem ntawm cov khoom lag luam tus qauv yog siab, thiab tag nrho cov khoom sib xyaw yog cov qauv, uas txuag cov ntaub ntawv raw, yog qhov zoo rau kev khaws cia thiab txo lub sijhawm xa khoom;
9. Kev ua haujlwm ntawm cov kav dej tau txais cov qauv txuas txuas txuas ntxiv, uas muaj qhov zoo ntawm kev nruj zoo, ruaj khov thiab tsis xeb.
