Ntau qhov ntau, siv pov tseg.
Kev tiv thaiv ib puag ncig thiab kev nyab xeeb, tsis muaj teeb meem rau tib neeg lub cev.
Cov npoo ntse, zoo xeb tshem tawm cov nyhuv.
Nruab nrab hardness, tsawg poob tus nqi.
Kev tsim khoom thiab kev tswj xyuas zoo ntawm cov khoom siv hlau thiab steel slag muaj ntau yam kev siv.Yog li ntawd, cov khoom siv hlau thiab steel slag tau ua lub luag haujlwm tseem ceeb hauv kev tsim cov khoom siv rau kev tsim kho vaj tse xws li, chaw nres nkoj, tshav dav hlau thoob plaws ntiaj teb, nrog rau cov khoom siv hauv eco-phooj ywg rau kev kho thiab txhim kho cov marines thiab av.