輕型節能高分子橋架dezuchengshiyoujinshuzhizaode，danfanshijinshudouhuishengxiu，youqishigaofenziqiaojiadezhizuocailiaozhonghaihanyoutanhetie
，suoyiwangwanghuizaigaofenziqiaojiawaimiandushangyicengxinhuozhepensu，zheyangkeyijianhuangaofenziqiaojiashengxiudesudu，yekeyijianhuangaofenziqiaojiadefushi。womendouzhidaofangzhileyiduanshijiandetiejiuhuishengxiu
，zhezhuyaoshiyouyutiebenshendehuaxuexingzhiyijiwaijiehuanjinggongtongzuoyong 導致的
，比如說如果環境中水分較多
，那麼久而久之鐵就會和水分做出反應產生名為氧化鐵的鐵鏽 ，這種鐵鏽較為容易脫落

，但是需要及時的除去
，不然漸漸的就會造成鐵爛掉。