Cov khoom siv hluav taws xob uas tsis hloov pauv yog ib yam khoom siv hluav taws xob uas tsis raug rho tawm. Nws yog qhov sib xyaw ua ke ntawm cov khoom sib xyaw ua ke, hmoov, cov ntawv nplaum thiab cov tshuaj ntxiv hauv qee qhov kev faib ua feem
Kev faib tawm ntawm cov khoom siv hluav taws xob tsis zoo
1) Raws li hom Nyiaj Txiag: cov khoom tsis muaj kuab lom, xws li kev sib txuas ntawm cov cement, kev sib txuas tshuaj lom neeg, ultra-nplua hmoov sib txuas, cov khoom lag luam organic, xws li cov kua nplaum sib txuas, asphalt tsevneeg thiab cov khoom sib txuas
2) Kev faib tawm raws li ntau yam refractory: siab alumina cib, av nplaum, siliceous, magnesian, silicon carbide, thiab lwm yam
3) Kev faib tawm raws li txoj hauv kev tsim kho: castable, ramming khoom, yas, txau txheej, thiab lwm yam
Ib qho ntxiv, nws kuj tseem tuaj yeem muab cais raws li kev ntsuas kub thiab lub hom phiaj
