Kev tu kom huv yog kom ntxuav cov vuam ntau dhau ntawm cov yeeb nkab uas siv rau cov yeeb nkab welding, thiab qaij nws lub kaum ntse ntse thiab flux swb tawm ib txwm.
27.11. Dab tsi yog qhov ua haujlwm ntawm kev swb tu?
Sep 04, 2025
Xa kev nug
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