Thaum nws los txog rau kev cai ntawv hlau qhov chaw thiab cov ntaub thaiv npog, vuam tuaj yeem daws tau tag nrho cov tswv cuab ntawm cov qauv tsim.Yog li ntawd, peb muab ntau yam txheej txheem vuam raws li ib feem ntawm peb cov kev cai tsim, nrog rau qhov chaw vuam, seam welding, fillet welds, ntsaws welds, thiab tack welds.Tab sis tsis siv t...
Nyeem ntxiv