... , Slag Stopper Ball, Cone Stopping Plug 2. Metal Alloys Silicon powder/briquette,silicon carbide briquette; SiCa alloy, SiAlBaCa alloy, SiCaBa alloy,Ferro Silicon alloy, pre ... -melted Re-Ca-Si-C alloy; Carbon Ferro manganese,Nitrogenized Ferro Chrome,RE-Fe-Si-Mg ...