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Ci yooj yim txiav hlau 1144 hloov steel txias kos cov pas nrig sib tsoo hlau sib tsoo hlau qws

Ci yooj yim txiav hlau 1144 hloov steel txias kos cov pas nrig sib tsoo hlau sib tsoo hlau qws

Khoom npe: Cov hlau txiav dawb

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

Cov pa roj carbon C: 0.40 ~ 0.48

Silicon Si: 0.15 ~ 0.35

MANMANESE MN: 1.35 ~ 1.65

P: ≤0.040

Sulphur S: 0.24 ~ 0.33

                

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Khoom Ntawm Cov Khoom Piav Qhiaqho kaj



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