Kev txhim kho thiab kev saib xyuas ntawm tus choj railings muaj ntau yam zoo. Hais txog kev nyab xeeb, ntxiv lossis kho dua tshiab lossis cov railings uas ploj lawm tuaj yeem tiv thaiv cov tsheb khiav tawm ntawm tus choj. Piv txwv li, Lanling Town tau siv txoj hauv kev "ib choj, ib txoj cai", ntxiv tshaj 480 meters ntawm txoj kab tsheb ciav hlau mus rau rau tus choj, ntxiv los ntawm txoj kab nqes guardrails thiab teeb ceeb toom, tshem tawm ntev - sawv kev nyab xeeb.
Kev saib xyuas zoo, xws li cov duab kos duab, tuaj yeem txhim kho corrosion kuj thiab lifespan ntawm railings, thaum tseem txhim khu kev zoo nkauj ntawm txoj kev ib puag ncig. Piv txwv li, tom qab qhov project painting ntawm Tongji South Road overpass railings, kev nyab xeeb thiab durability tau txhim kho, thiab cov tsos tau zoo tag nrho. Cov haujlwm no hais txog kev txhawj xeeb rau pej xeem, txhim kho pej xeem kev nkag siab ntawm kev nyab xeeb thiab kev noj qab nyob zoo-. Piv txwv li, txoj kev txhim kho choj railing nyob rau hauv Taihu County ua rau cov railings kho tshiab, ruaj khov, thiab zoo nkauj.