... machined and used for the auto engine, chasis parts, valve parts, construction equipment and the parts, mining equipment and ... Gray iron, ductile iron, malleable iron, aluminum, bronze, brass.2) Precision investment casting parts: Carton steel parts.Stainless steel parts ... ) Gravity casting parts: Aluminum castring parts. Brass casting parts.4) Weight: 0.2-400 kg.5) Manufacture quipment: Cupola, ...