... iron ASTM G3000,GG20,HT250,Stainless steel,ductile iron2.Car make: European cars,Japanese Cars,American Cars etc3.Passed ... quality than others.6. Drilled holes provide maximum air circulation for increased cooling.Holes are countersunk which reduces ... GG20,HT250,Ductile iron etcCar MakeAmerican Cars,Japanese cars,European Car etcHardness180-240HBPackingplastic bags + kraft paper box (Customer brand ...