High-frequency welded yeeb nkab cov cuab yeej yog cov cuab yeej siv vuam zoo, uas tuaj yeem vuam workpieces nrog cov tuab tuab, thiab muaj cov vuam zoo, cov vuam vuam zoo, lub zog siab, txhim khu kev qha vuam zoo, kev ua haujlwm yooj yim thiab kev saib xyuas yooj yim. Nws yog ib qho khoom siv tseem ceeb hauv kev vuam ...
Nyeem ntxiv