Tungsten steel, tshwj xeeb tshaj yog cov khoom siv ua haujlwm siab, sawv tawm raws li cov khoom ntawm kev xaiv rau ntau daim ntawv thov.Nws yog cov khoom siv sib xyaw ua ke ua los ntawm ntau yam hlau carbide, feem ntau hu ua tungsten carbide hmoov, cobalt carbide hmoov, n ...
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