Chromium corundum, vim nws qhov kev ua tau zoo heev, yog dav siv nyob rau hauv high-temperature teb nrog hnyav ib puag ncig, nrog rau cov uas tsis yog-ferrous metallurgical kilns, iav melting kilns, carbon dub tshuaj tiv thaiv furnaces, khib nyiab incinerators, thiab lwm yam. Thaum pib ntawm nws txoj kev loj hlob, chromium cov...
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