... Cast, High density,Super Wear Resistance 2.Material:Gray,Ductile,Alloy Cast Iron 3 ... (ISO:400-18/500-7/600-3/700-2/800-1) ---spheroidization rate 90%,ball diameter ... elongation increase 50~100%2.ADI(Austempered Ductile Iron) ---σb≥1200Μpa,δ≥2%,ak≥35J/mm23.Gray ... ring, steering pump stator, gear Mine mechinanismwear resist sleeve, engine cylinder ( function(){ var aBigImageSrc = [ 'http://i01.i.aliimg ...