Vim tias cov hlau tsis muaj cov pa roj carbon tsawg, manganese, silicon cov ntsiab lus tseem me me, yog li ntawd, nyob rau hauv ib txwm muaj teeb meem yuav tsis raug welded los tsim cov ntaub so ntswg hnyav lossis quenched qauv. Tsawg carbon steel vuam pob qij txha plasticity thiab cuam tshuam zoo toughness, welding ...
Nyeem ntxiv