Cov txheej txheem ntau lawm ntawm welded kav yuav tsum nruj kev tswj hwm qhov zoo ntawm txhua tus txheej txheem kom ntseeg tau tias qhov zoo ntawm cov khoom lag luam kawg tau raws cov qauv. Kev ntsuas kev tswj hwm zoo suav nrog cov khoom siv tshuaj ntsuam cov khoom siv tswj tau ntau dua, nws kuj yog qhov ua tiav cov teeb meem hauv lub sijhawm ua haujlwm hauv lub sijhawm.
14. Yuav ua li cas ua kom tswj tau zoo ntawm high- zaus} zaus watded steel kav?
Jul 30, 2025
Xa kev nug
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