Ib tug binary alloy muaj li ntawm silicon thiab calcium belongs rau qeb ntawm ferroalloys.Nws cov khoom tseem ceeb yog silicon thiab calcium, thiab nws kuj muaj impurities xws li hlau, txhuas, carbon, sulfur thiab phosphorus nyob rau hauv ntau yam.Hauv kev lag luam hlau thiab hlau, kuv ...
Nyeem ntxiv