... kinds: casting steel using and casting iron using. The main ingredients are SiO2, Al2O3, Rapidly heated to above 1100 °C ... casting defects such as slag, gas, which is helpful for molten iron (steel) purification, improve castings quality, reduce ... place, waterproof, moistureproof, ripstop. physical and chemical indexes (For casting iron using)Table 1: compositions compositions(element)loss on ...