1. Cov iav tempered tau muab faib ua daim iav tiaj tus thiab iav ntab iav raws li nws cov duab.
Feem ntau, cov tuab ntawm ca tempered iav yog 11, 12, 15, 19mm, thiab lwm yam.; lub thickness ntawm curved tempered iav yog 11, 15 thiab 19mm, thiab lwm yam. Lub thickness tom qab ua raws li cov khoom siv thiab thev naus laus zis ntawm txhua qhov chaw tsim khoom. Txawm li cas los xij, nkhaus (piv txwv li, bent steel) tempered iav muaj ntau qhov arc txwv rau txhua cov tuab. Ntawd yog, RR feem ntau yog hu ua lub voos kheej-kheej.
2, tempered iav tau muab faib ua cov tiaj tus hlau thiab nkhaus hlau raws li nws qhov tsos.
3, tempered iav raws li nws lub tiaj tau muab faib ua: cov khoom zoo, cov khoom tsim nyog. Lub tempered iav ntawm qib siab dua yog siv rau lub tsheb sib txuam qhov cua; cov khoom tsim nyog yog siv rau qhov kho kom zoo nkauj architectural.