Cov khoom siv vuam siv feem ntau yog AC thiab DC vuam tshuab, argon arc vuam tshuab, tsis siv vuam tshuab, carbon dioxide shielded vuam tshuab, thiab lwm yam. Cov khoom siv vuam ntau dua kuj suav nrog arc vuam, electroslag vuam, brazing, txhuam ...
Nyeem ntxiv