Metalworking yog txheej txheem ntawm shaping thiab manipulating ntau hom hlau rau hauv ntau hom, qauv, thiab khoom. Nws suav nrog ntau yam txuj ci xws li txiav, drilling, khoov, shaping, vuam, soldering, forging, thiab casting. Cov hlau uas nquag siv hauv kev ua hlau muaj xws li hlau, txhuas, tooj liab, tooj dag, thiab nyiaj. Cov txheej txheem hlau ua haujlwm yog siv ntau yam kev lag luam xws li kev tsim kho, kev tsim khoom, kev tsim cov hniav nyiaj hniav kub, thiab kev tsim kho tsheb.
Hlau ua haujlwm
Jun 07, 2023
Tso lus