Cobalt Hlau (Co)
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Hmoov Hlau Cobalt (Co)
Cov Khoom Siv Lub Cev Lub Hom Phiaj, tej daim, & hmoov Cov Khoom Siv Tshuaj 99.8% txog 99.99% Cov hlau no tau ua kom nws txoj haujlwm ruaj khov hauv cov chaw ib txwm muaj, xws li cov khoom siv superalloys, thiab tau pom tias muaj kev siv ntau dua hauv qee qhov kev siv tshiab, xws li hauv cov roj teeb rov qab tau...Nyeem ntxiv