... casting parts material: Gray iron, ductile iron, malleable iron, aluminum, bronze, brass.2) Precision investment casting parts: Carton steel parts ... parts: Aluminum castring parts. Brass casting parts.4) Weight: 0.2-400 kg.5) Manufacture quipment: Cupola, electric middle frequency furnace, resin ... , molding sand testing equipment, chemistry composition analysis room. aluminum gravity casting parts