... .Test:Tensile,chemical composition Hardness test 5.Quality Assurance Cast iron part accessory Advantage: 1. We can make it ... . Tooling Measurement & Check 9. Assembly10. Trial Production11. Correction Cast iron part accessory1. Molding process:Green sand casting,shell sand casting ... auto sand casting line2. Material:Grey iron,GG15,GG20,GG25,GG30.Ductile iron GGG40,GGG50,GGG60,GGG70.En1596 EN1563, ...