Dab tsi kev lag luam yog qhib-kawg puag ncig lub taub hau dig muag rivets tsuas yog siv hauv?

Daim ntawv thov teb ntawm qhib puag ncig lub taub hau dig muag rivets:

Kev tsim tsheb npav, kev tsim kho, electromechanical, shipbuilding, txee, tsheb tsim, khoom siv hauv tsev thiab lwm yam lag luam.