Gravity casting auto parts leading professional technology and competitive ... Material: Aluminum Alloy2) Aluminum gravity casting is made by permanent mould, then machining and T6 heat treatment.3 ... mould casting.4) software for drawing: pro/E, auto CAD, UG, CAD, PDF and solid works 2008 ... coating and anodizing.7) OEM and ODM parts range: auto parts, electronic parts, furniture parts, home appliance and ...