... alloy, Magnesium, steel, grey iron and Ductile Cast iron Sand casting (iron or brass) Forging/stamping (aluminum, brass and steel) ... Die casting/vacuum casting (aluminum, zinc alloy, Magnesium) Investment casting (stainless steel or brass) 2. Process: Casting, Machining, Assembly and Surface ... delivery 5. Service: OEM service and timely feedback. Magnesium casting support for seat