Cleaner metal results in higher-quality castings, less scrap, and fewer inclusion defects, all of which contribute to bottom-line profit. Apply to purify the molten carbon steel, steel alloy and stainless steel. It can withstand technical requirements in steel casting process, filter slag and etched material, slow turbulence, and thereby reduce the re-oxidation slag. Purify molten steel Enhance the yield of steel casting Reduce inclusions of steel casting Decrease internal re-oxidation defects Reduce the sub-surface defects after machining.