Ob Chav Chamfer Yooj Yim Txiav Hlau 1144 Lub Teeb Qws Chaw Ua Haujlwm Me Polishing Round Me Me Hlau Kub

Hom: 1144

Dawb Txiav Hlau Rau Kev Siv

Siv raws li tig hlau, siv dav hauv cov txheej txheem.

Tshuaj lom neeg cov tshuaj:

Cov pa roj carbon C: 0.40 ~ 0.48

MANMANESE MN: 1.35 ~ 1.65

P: ≤0.040

Sulphur S: 0.24 ~ 0.33

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