Muaj peev xwm kos ntau yam khoom siv uas tsis yog xim hlau. Siv rau hauv cov ris tsho hnav khaub ncaws, ntim tshuaj, ntim cov cawv txiv hmab, kos duab ua vaj tsev, ntim dej haus, txiav ntaub, roj hmab khoom, plhaub npe, khoom plig khoom plig, khoom siv hluav taws xob, tawv thiab lwm yam lag luam.
1. Muaj peev xwm kos cov hlau thiab ntau yam khoom siv uas tsis yog hlau. Nws yog qhov tsim nyog rau kev ua tiav ntawm qee cov khoom lag luam uas xav tau kev nplua thiab siab.
2. Siv rau hauv cov khoom siv hluav taws xob, cov khoom siv sib txuas (IC), cov khoom siv hluav taws xob, kev sib txuas lus hauv xov tooj, cov khoom siv kho vajtse, cov cuab yeej siv cuab yeej siv, cov cuab yeej siv tau zoo, tsom iav thiab saib, cov hniav nyiaj hniav kub, qhov chaw pib, khawm yas, cov khoom siv hauv tsev, cov kav dej PVC, cov khoom siv kho mob thiab lwm yam kev lag luam.
3. Cov ntaub ntawv siv tau suav nrog: cov hlau zoo ib yam thiab cov khoom siv (hlau, tooj liab, txhuas, magnesium, zinc thiab lwm yam hlau), tsis tshua muaj hlau thiab cov khoom siv (kub, nyiaj, titanium), hlau oxides (txhua hom hlau oxides tuaj yeem siv tau), Tshwj xeeb kev kho saum npoo av (phosphating, aluminium anodization, electroplating nto), ABS cov khoom siv (hluav taws xob lub plhaub, khoom siv txhua hnub), number case (pob tshab pob tshab, luam tawm cov khoom lag luam), epoxy resin (ntim khoom siv hluav taws xob ntim, insulating txheej).
