... defects such as slag, gas, which is helpful for molten iron (steel) purification, improve castings quality, reduce casting rejection rate. ... place, waterproof, moistureproof, ripstop. physical and chemical indexes (For casting iron using)Table 1: compositions compositions(element)loss on drying(lg ... -15501.1-1.35.5-6.06-8≤2.6% ( function(){ var aBigImageSrc = [ 'http://i01.i.aliimg.com/photo/v3/ ...