Hlau: Nws yog cov khoom siv los ntawm ingot, billet lossis steel los ntawm kev ua haujlwm siab rau ntau yam duab, qhov ntau thiab tsawg thiab cov khoom xav tau. Hlau yog cov khoom siv tseem ceeb rau kev tsim kho hauv tebchaws thiab kev ua tiav ntawm plaub qhov kev hloov kho tshiab, dav siv, ntau yam, raws li qhov sib txawv ...
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