Dab tsi yog steel thiab nws ua li cas? Thaum Hlau yog alloyed nrog carbon thiab lwm yam khoom nws yog hu ua hlau. Lub resultant alloy muaj daim ntaub ntawv raws li lub ntsiab ntawm lub tsev, infrastructure, cuab yeej, nkoj, tsheb, tshuab, ntau yam khoom siv, thiab riam phom. Peb...
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