Cov yam ntxwv ntawm lub loj nthwv welded yeeb nkab chav tsev yog: siab vuam ceev, vuam me thaum tshav kub kub cuam tshuam cheeb tsam, vuam tsis tuaj yeem ntxuav qhov chaw ua haujlwm, thiab tuaj yeem txuas cov kav hlau nyias-txuas thiab kav hlau txuas.
Cov txheej txheem ntau lawm ntawm high-welded yeeb nkab chav tsev feem ntau nyob ntawm cov khoom lag luam. Los ntawm cov ntaub ntawv raw mus rau cov khoom tiav, cov kab kev tsim kho yuav tsum muaj. Kev ua tiav ntawm cov txheej txheem no yuav tsum muaj ntau yam khoom siv kho tshuab thiab vuam siv, hluav taws xob tswj, thiab kev sim khoom siv. Cov cuab yeej thiab khoom siv no ua raws li cov txheej txheem sib txawv Cov txheej txheem thev naus laus zis xav kom muaj ntau txoj kev tsim nyog, cov txheej txheem sib txuas ntawm cov kav hlau loj: txoj kev sib tsoo - - tsis duav - - sawb theem -— lub taub hau thiab tus tw tw - — nqaj qab vuam vuam —- --- - Cov khoom tiav.
